We had a case where we accidently imported a XML file for a room into a project twice. Microvellum did not give an error that the room already existed, it just ran the import. The products were not added to the same room. The products were added to a different room without informing user as to what happened.

I would like to see at minimum a warning stating "This room already exist do you want to continue?" Then give the option to cancel, overwrite, or append to order.