Squashed commit of the following:

commit 8862787
Author: Roman Rodionov <roman_rodionov@epam.com>
Date:   Wed Dec 11 23:06:58 2024 +0100

    Backmerge: #5949 - Delete of micromolecules bonds works wrong (or doesn't work) (#6124)

    * #5949 - Delete of micromolecules bonds works wrong (or doesn't work)

    - added invertAfterAllOperations method to atom and bonds operations to allow renderers rely on final state of model before rendering
    - added deleting of atoms and bonds from molecules struct to synchronize molecules and macromolecules modes
    - reworked bonds/atoms deletion logic
    - moved post execution logic from renderer to command

commit dc4cfdc
Author: Igor Kostrubin <kostrubin@bk.ru>
Date:   Wed Dec 11 20:54:17 2024 +0100

    #5796 - Indigo functions doesn't work if monomer on micro canvas - system throws an error: Error: Cannot deserialize input JSON. (#6130)

commit 014472b
Author: Roman Rodionov <roman_rodionov@epam.com>
Date:   Wed Dec 11 17:50:13 2024 +0100

    #5317 - Some side chain bonds are not shown in Sequence mode for bases, CHEMs, phosphates and sugars (#6054)

commit b236964
Author: Maksim Labovich <lumihis+github@gmail.com>
Date:   Wed Dec 11 18:55:54 2024 +0300

    #5476 - Copy/Cut and Paste using Ctrl+C/X and Ctrl+V doesn't work for static elements in Mozilla Firefox (#6121)

    * #5476 - save to text/plain in KET format instead of RXN

    - Firefox doesn't support MIME types other than text/plain in ClipboardItem, and RXN format saved by default to text/plain supports only chemical elements

    * #5476 - added comment, added stringify for data object to avoid [object Object] in console

commit fa13b99
Author: Roman Rodionov <roman_rodionov@epam.com>
Date:   Wed Dec 11 15:48:24 2024 +0100

    #6086 - Unable to create antisense chains for ambiguous monomers from the library (#6113) (#6118)

    - added antisense creation for chains with ambiguous bases

commit 668758d
Author: Roman Rodionov <roman_rodionov@epam.com>
Date:   Wed Dec 11 15:34:37 2024 +0100

    #6096 - Antisense creation works wrong in case of partial selection (#6122) (#6123)

    - fixed creation of antisense for partial selection by several pieces in one chain

commit 89f5ce6
Author: Ruslan <117785539+Guch1g0v@users.noreply.github.com>
Date:   Wed Dec 11 13:14:21 2024 +0500

    #6127 - Hover mouse over ambiguous monomer on Micromolecules canvas causes app crash (#6128)

commit cca5f90
Author: Anrei Menshikov <95479023+Drimodaren@users.noreply.github.com>
Date:   Wed Dec 11 12:05:35 2024 +0400

    #5978-entire-element-bounding-box-should-be-clickable-not-only-black-dots (#6059)

    * 5978-entire-element-bounding-box-should-be-clickable-not-only-black-dots

    * Refactoring

    * fix test

    * add new metod bondHoverablePath after review

    * createBondHoverablePath new logic

    * add type,const and refctoring createBondHoverablePath

    * commit TODO for mouseEvents

    * add ?? operand

    ---------

    Co-authored-by: Andrey Menshikov <andrey.menshikov@bostongene.com>

commit 932ed0f
Author: Roman Rodionov <roman_rodionov@epam.com>
Date:   Tue Dec 10 12:49:17 2024 +0100

    Backmerge: #6068 - Same chain configuration imported by different HELM layouted differently (anyway - both are wrong) (#6111)

    * #6068 - Same chain configuration imported by different HELM layouted differently (anyway - both are wrong) (#6099)

    #6074 - System doesn't flip chain if connected to monomer but not to base (2)

    #6068 - Same chain configuration imported by different HELM layouted differently (anyway - both are wrong)

    #6074 - System doesn't flip chain if connected to monomer but not to base (2)

    #6080 - System doesn't flip chain if connected to monomer but not to base (3)

    #6081 - Smaller chain should be at the bottom

    #6087 - Antisense layout is wrong for any ambiguouse base from the library

    #6077 - H-bond is not alligned to Snake mode view in some cases

    #6076 - Two-to-one base H-bond connection layouted wrong

    #6075 - In case of multipal H-bonds system should arrange antisence chain to first base of bottom chain

    #6070 - System doesn't flip chain if connected to monomer but not to base

    #6067 - Two chains connected by H-bond arranged wrong if third bond present on the canvas

    #6061 - RNA chain remain flipped after hydrogen bond removal

    - reworked antisense chains calculation

    * - fixed flacky test

ketcher-autotests/tests/Macromolecule-editor/Import-Saving-Files/import-saving-ket.spec.ts

@@ -141,7 +141,7 @@ test.describe('Import-Saving .ket Files', () => {
   test('Validate that saving to .ket file of any monomer from our Library does not change after loading it back from .ket file to canvas', async () => {
     /*
     Test case: Import/Saving files #3827 #3757
-    Description: The monomer name is present in the preview after opening the saved file. 
+    Description: The monomer name is present in the preview after opening the saved file.
     */
     // Reload needed as monomer IDs increment in prior tests, affecting data comparasion
     await pageReload(page);
@@ -166,7 +166,7 @@ test.describe('Import-Saving .ket Files', () => {
   test('Check that after loading from a file and then pressing undo, it does not break the selection/moving functionality', async () => {
     /*
     Test case: Import/Saving files #3756
-    Description: After pressing Undo not break the selection/moving functionality. 
+    Description: After pressing Undo not break the selection/moving functionality.
     */
     await openFileAndAddToCanvasMacro(
       'KET/Peptide-Enumeration-One-Two-Three-connections3.ket',
@@ -189,7 +189,7 @@ test.describe('Import-Saving .ket Files', () => {
   test('Check that fields "class" and "classHELM" are presents into .ket file', async () => {
     /*
     Test case: Import/Saving files #3846
-    Description: Fields "class" and "classHELM" are presents into .ket file. 
+    Description: Fields "class" and "classHELM" are presents into .ket file.
     */
     // Reload needed as monomer IDs increment in prior tests, affecting data comparasion
     await pageReload(page);
@@ -214,7 +214,7 @@ test.describe('Import-Saving .ket Files', () => {
   test('Check .ket file that "leavingGroup" section contain information about number of atoms', async () => {
     /*
     Test case: Import/Saving files #4172
-    Description: "leavingGroup" section contain information about number of atoms. 
+    Description: "leavingGroup" section contain information about number of atoms.
     */
     // Reload needed as monomer IDs increment in prior tests, affecting data comparasion
     await pageReload(page);
@@ -922,8 +922,10 @@ test(`Verify that the structure in macro mode can be saved as a .ket file, and a
     'KET/Micro-Macro-Switcher/Complicated structures on the canvas-expected.ket';
 
   await openFileAndAddToCanvasAsNewProject(KETFile, page);
+  await moveMouseAway(page);
   await takeEditorScreenshot(page);
   await verifyFile2(page, KETFileExpected, FileType.KET);
   await openFileAndAddToCanvasAsNewProject(KETFileExpected, page);
+  await moveMouseAway(page);
   await takeEditorScreenshot(page);
 });

ketcher-autotests/tests/Macromolecule-editor/Sequence-Mode/sequence-mode-replacement.spec.ts

@@ -232,85 +232,85 @@ const sequences: ISequence[] = [
     Id: 1,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of peptides (A).ket',
     SequenceName: 'sequence of peptides (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 2,
     FileName:
       'KET/Sequence-Mode-Replacement/sequence of peptides w_o natural analog (4Abz).ket',
     SequenceName: 'sequence of peptides w/o natural analog (4Abz)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 3,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of presets (A).ket',
     SequenceName: 'sequence of presets (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 4,
     FileName:
       'KET/Sequence-Mode-Replacement/sequence of presets without phosphate (SGNA(U)).ket',
     SequenceName: 'sequence of presets without phosphate (SGNA(U))',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 5,
     FileName:
       'KET/Sequence-Mode-Replacement/sequence of presets without base (SGNA()ibun).ket',
     SequenceName: 'sequence of presets without base (SGNA()ibun)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 6,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of sugars (UNA).ket',
     SequenceName: 'sequence of sugars (UNA)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 7,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of bases (nC6n5U).ket',
     SequenceName: 'sequence of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 8,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of phosphates (moen).ket',
     SequenceName: 'sequence of phosphates (moen)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 9,
     FileName:
       'KET/Sequence-Mode-Replacement/sequence of unsplit nucleotides (2-Amino-dA).ket',
     SequenceName: 'sequence of unsplit nucleotides (2-Amino-dA)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 10,
     FileName:
       'KET/Sequence-Mode-Replacement/sequence of unsplit nucleotides w_o natural analog (5NitInd).ket',
     SequenceName:
       'sequence of unsplit nucleotides w/o natural analog (5NitInd)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 11,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of CHEMs (A6OH).ket',
     SequenceName: 'sequence of CHEMs (A6OH)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 12,
     FileName:
       'KET/Sequence-Mode-Replacement/sequence of unresolved nucleotide (5Unres).ket',
     SequenceName: 'sequence of unresolved nucleotide (5Unres)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
 ];
 
@@ -1555,44 +1555,44 @@ const twoSequences: ISequence[] = [
       'KET/Sequence-Mode-Replacement/base to base connected two sequences of presets (U) w_o phosphates.ket',
     SequenceName:
       'base to base connected two sequences of presets (U) w_o phosphates',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 14,
     FileName:
       'KET/Sequence-Mode-Replacement/base to base connected two sequences of presets (U).ket',
     SequenceName: 'base to base connected two sequences of presets (U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 15,
     FileName:
       'KET/Sequence-Mode-Replacement/base to sugar connected two sequences of presets (U) w_o phosphate.ket',
     SequenceName:
       'base to sugar connected two sequences of presets (U) w_o phosphate',
-    ReplacementPositions: { LeftEnd: 3, Center: 4, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 16,
     FileName:
       'KET/Sequence-Mode-Replacement/base to sugar connected two sequences of presets (U).ket',
     SequenceName: 'base to sugar connected two sequences of presets (U)',
-    ReplacementPositions: { LeftEnd: 3, Center: 4, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 17,
     FileName:
       'KET/Sequence-Mode-Replacement/phosphate to base connected two sequences of presets (U).ket',
     SequenceName: 'phosphate to base connected two sequences of presets (U)',
-    ReplacementPositions: { LeftEnd: 2, Center: 3, RightEnd: 4 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 18,
     FileName:
       'KET/Sequence-Mode-Replacement/phosphate to phosphate connected two sequences of presets (U) w_o base.ket',
     SequenceName:
       'phosphate to phosphate connected two sequences of presets (U) w_o base',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
@@ -1601,82 +1601,82 @@ const twoSequences: ISequence[] = [
       'KET/Sequence-Mode-Replacement/phosphate to phosphate connected two sequences of presets (U).ket',
     SequenceName:
       'phosphate to phosphate connected two sequences of presets (U)',
-    ReplacementPositions: { LeftEnd: 2, Center: 3, RightEnd: 4 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 20,
     FileName:
       'KET/Sequence-Mode-Replacement/phosphate to sugar connected two sequences of presets (U) w_o base.ket',
     SequenceName:
       'phosphate to sugar connected two sequences of presets (U) w_o base',
-    ReplacementPositions: { LeftEnd: 2, Center: 4, RightEnd: 6 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 21,
     FileName:
       'KET/Sequence-Mode-Replacement/phosphate to sugar connected two sequences of presets (U).ket',
     SequenceName: 'phosphate to sugar connected two sequences of presets (U)',
-    ReplacementPositions: { LeftEnd: 3, Center: 4, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 22,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequence of unsplit nucleotides (AmMC6T).ket',
     SequenceName: 'two sequence of unsplit nucleotides (AmMC6T)',
-    ReplacementPositions: { LeftEnd: 4, Center: 5, RightEnd: 6 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 23,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequences of bases (nC6n5U).ket',
     SequenceName: 'two sequences of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 6, Center: 8, RightEnd: 10 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 24,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequences of CHEMs (4aPEGMal).ket',
     SequenceName: 'two sequences of CHEMs (4aPEGMal)',
-    ReplacementPositions: { LeftEnd: 6, Center: 8, RightEnd: 10 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 25,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequences of peptides (D-gGlu).ket',
     SequenceName: 'two sequences of peptides (D-gGlu)',
-    ReplacementPositions: { LeftEnd: 4, Center: 5, RightEnd: 6 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 26,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequences of peptides w_o natural analog (Apm).ket',
     SequenceName: 'two sequences of peptides w_o natural analog (Apm)',
-    ReplacementPositions: { LeftEnd: 4, Center: 5, RightEnd: 6 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
   {
     Id: 27,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequences of phosphates (Test-6-Ph).ket',
     SequenceName: 'two sequences of phosphates (Test-6-Ph)',
-    ReplacementPositions: { LeftEnd: 6, Center: 8, RightEnd: 10 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 28,
     FileName: 'KET/Sequence-Mode-Replacement/two sequences of sugars (5A6).ket',
     SequenceName: 'two sequences of sugars (5A6)',
-    ReplacementPositions: { LeftEnd: 6, Center: 8, RightEnd: 10 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   },
   {
     Id: 29,
     FileName:
       'KET/Sequence-Mode-Replacement/two sequences of unresolved nucleotide (5Unres).ket',
     SequenceName: 'two sequences of unresolved nucleotide (5Unres)',
-    ReplacementPositions: { LeftEnd: 4, Center: 5, RightEnd: 6 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   },
 ];
 
@@ -2028,7 +2028,7 @@ test(`23. Verify functionality of 'Cancel' option in warning modal window`, asyn
     Id: 7,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of bases (nC6n5U).ket',
     SequenceName: 'sequence of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   };
 
@@ -2082,7 +2082,7 @@ test(`24. Verify functionality of 'Cancel' option for multiple selected monomers
     Id: 7,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of bases (nC6n5U).ket',
     SequenceName: 'sequence of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   };
 
@@ -2144,7 +2144,7 @@ test(`25. Verify undo/redo functionality after replacing monomers`, async () =>
     Id: 7,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of bases (nC6n5U).ket',
     SequenceName: 'sequence of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   };
 
@@ -2194,7 +2194,7 @@ test(`26. Copy and paste replaced monomers`, async () => {
     Id: 7,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of bases (nC6n5U).ket',
     SequenceName: 'sequence of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   };
 
@@ -2244,7 +2244,7 @@ test(`27. Verify switching from Macro mode to Micro mode and back without data l
     Id: 7,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of bases (nC6n5U).ket',
     SequenceName: 'sequence of bases (nC6n5U)',
-    ReplacementPositions: { LeftEnd: 1, Center: 3, RightEnd: 5 },
+    ReplacementPositions: { LeftEnd: 0, Center: 2, RightEnd: 4 },
     ConfirmationOnReplecement: true,
   };
 
@@ -2292,7 +2292,7 @@ test(`28. Verify saving and reopening a structure with replaced monomers in KET`
     Id: 3,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of presets (A).ket',
     SequenceName: 'sequence of presets (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   };
 
   const replaceMonomer: IReplaceMonomer = {
@@ -2348,7 +2348,7 @@ test(`29. Verify saving and reopening a structure with replaced monomers in MOL
     Id: 3,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of presets (A).ket',
     SequenceName: 'sequence of presets (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   };
 
   const replaceMonomer: IReplaceMonomer = {
@@ -2408,7 +2408,7 @@ test(`30. Verify saving and reopening a structure with replaced monomers in Sequ
     Id: 3,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of presets (A).ket',
     SequenceName: 'sequence of presets (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   };
 
   const replaceMonomer: IReplaceMonomer = {
@@ -2466,7 +2466,7 @@ test(`31. Verify saving and reopening a structure with replaced monomers in FAST
     Id: 3,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of presets (A).ket',
     SequenceName: 'sequence of presets (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   };
 
   const replaceMonomer: IReplaceMonomer = {
@@ -2529,7 +2529,7 @@ test(`32. Verify saving and reopening a structure with replaced monomers in IDT`
     Id: 3,
     FileName: 'KET/Sequence-Mode-Replacement/sequence of presets (A).ket',
     SequenceName: 'sequence of presets (A)',
-    ReplacementPositions: { LeftEnd: 1, Center: 2, RightEnd: 3 },
+    ReplacementPositions: { LeftEnd: 0, Center: 1, RightEnd: 2 },
   };
 
   const replaceMonomer: IReplaceMonomer = {