BSP option to convert actor to another type not usable

Convert Actor option in BSP details pane is grayed out and cannot be used.

1. Open Editor (any project)
2. Go to Modes>Placement Mode>BSP>Cube
3. Place copy of cube bsp into level
4. Select cube bsp in level
5. View Details Pane>Actors>Convert Actor

Result:

Context menu is grayed out and unselectable (view attached image)

Expected:

Either context menu is selectable and usable or does not exist if not usable.