diff --git a/docs/BHoM_oM/Dimensional_oM/IElement-required-extension-methods.md b/docs/BHoM_oM/Dimensional_oM/IElement-required-extension-methods.md
index 9f20a24d8..9ef933e9d 100644
--- a/docs/BHoM_oM/Dimensional_oM/IElement-required-extension-methods.md
+++ b/docs/BHoM_oM/Dimensional_oM/IElement-required-extension-methods.md
@@ -29,7 +29,7 @@ Please note that the default implementations do _not_ cover the mass interface `
|:-----------|:----------|:----------|:----------|
| `IElement0D` |
- `Geometry()`
- `SetGeometry(Point point)`
- `HasMergeablePropertiesWith(IElement0D)`
|
|
| `IElement1D` | - `Geometry()`
- `SetGeometry(ICurve curve)`
- `HasMergeablePropertiesWith(IElement1D)`
| - `Elements0D()`
- `SetElements0D(`
`List newElements0D)` - `NewElement0D(Point point)`
| `IElement1D` which endpoints are defined by `IElement0D` |
- | `IElement2D` | - `OutlineElements1D()`
- `SetOutlineElements1D(`
`List outlineElements1D)` - `NewElement1D(ICurve curve)`
- `HasMergeablePropertiesWith(IElement2D)`
|- `InternalElements2D()`
- `NewInternalElement2D()`
- `SetInternalElements2D(`
`List internalElements2D)`
| If the `IElement2D` has internal elements |
+ | `IElement2D` | - `OutlineElements1D()`
- `SetOutlineElements1D(`
`List outlineElements1D)` - `HasMergeablePropertiesWith(IElement2D)`
|- `InternalElements2D()`
- `NewInternalElement2D()`
- `SetInternalElements2D(`
`List internalElements2D)`
| If the `IElement2D` has internal elements |
| |
| `IElementM` | - `MaterialComposition()`
- `SolidVolume()`
or - `VolumetricMaterialTakeoff()`
| | |