I am trying to remove a location in cabling but the following message appears on the bottom: "Splice location can not be removed". Is there some way to force to remove it?
It usually happens when location you are trying to remove has splice component referencing to it.
Make sure that there are no such components.
In case no component is referencing to this location, then you can force remove it by deleting portion between closet locations with "Delete Cable Portion"