Delete a Property without having to delete related rooms first

Description

I wish to delete several properties from my portfolio because they need to be in a different portfolio and there is no move facility. These properties have no data on them so will not affect any reports. 

For some reason you can't just delete a property in one go. You have to manually delete all the rooms first. Which is annoying doing it for one property and frustrating for multiple ones.

Request

Please can you alter the delete so it removes rooms as well. If its for safety reasons then let a pop up say - 'There are rooms associated with this property, are you sure you wish to delete? y/n' or something like that.