Cannot paste into "Expandable Area" widget

The right click paste option is grayed out when trying to copy and paste a widget in to an expandable area widget via the right click menu.

1. Open the editor
2. Create a new widget blueprint
3. Add an expandable area widget to the designer tab
4. Add a text block to the designer tab
5. Right click the text block > copy
6. Right click the expandable area > paste (paste will be grayed out)

Result: The paste option in the right click menu will be grayed out
Expected: The user would be able to right click > paste a copied widget into an expandable area widget