diff --git a/packages/ketcher-core/src/typing.d.ts b/packages/ketcher-core/src/typing.d.ts
new file mode 100644
index 0000000000..8b0e52c73e
--- /dev/null
+++ b/packages/ketcher-core/src/typing.d.ts
@@ -0,0 +1,7 @@
+import { Ketcher } from 'ketcher-core'
+
+declare global {
+  interface Window {
+    ketcher: Ketcher
+  }
+}
diff --git a/packages/ketcher-core/src/utilities/emitEventRequestIsFinished.ts b/packages/ketcher-core/src/utilities/emitEventRequestIsFinished.ts
new file mode 100644
index 0000000000..ff76ff28b1
--- /dev/null
+++ b/packages/ketcher-core/src/utilities/emitEventRequestIsFinished.ts
@@ -0,0 +1,12 @@
+const REQUEST_IS_FINISHED = 'REQUEST_IS_FINISHED'
+
+/**
+ * Emit event when request is finished
+ * Used only for testers to prevent long delays in test cases
+ * Triggers on Add to canvas / Aromatize / Dearomatize
+ * Clean Up / Calculate CIP / Paste from clipboard
+ * maybe somewhere else
+ */
+export function emitEventRequestIsFinished(): void {
+  window?.ketcher?.eventBus.emit(REQUEST_IS_FINISHED)
+}
diff --git a/packages/ketcher-core/src/utilities/index.ts b/packages/ketcher-core/src/utilities/index.ts
index c0fd2c2b3e..c312125eee 100644
--- a/packages/ketcher-core/src/utilities/index.ts
+++ b/packages/ketcher-core/src/utilities/index.ts
@@ -18,3 +18,4 @@ export * from './ifDef'
 export * from './tfx'
 export * from './runAsyncAction'
 export * from './b64toBlob'
+export * from './emitEventRequestIsFinished'
diff --git a/packages/ketcher-react/src/script/ui/state/shared.ts b/packages/ketcher-react/src/script/ui/state/shared.ts
index 615a515468..8985066bad 100644
--- a/packages/ketcher-react/src/script/ui/state/shared.ts
+++ b/packages/ketcher-react/src/script/ui/state/shared.ts
@@ -21,7 +21,8 @@ import {
   getStereoAtomsMap,
   identifyStructFormat,
   Struct,
-  SupportedFormat
+  SupportedFormat,
+  emitEventRequestIsFinished
 } from 'ketcher-core'
 
 import { supportedSGroupTypes } from './constants'
@@ -160,6 +161,8 @@ export function load(struct: Struct, options?) {
     } catch (err: any) {
       dispatch(setAnalyzingFile(false))
       err && errorHandler(err.message)
+    } finally {
+      emitEventRequestIsFinished()
     }
   }
 }