Address validation for BPs - Building, Room, Floor and Location

Standard Address mgt Can be activated per country in Country specific checkT005-XREGS

This allows for Streets, City, Region postcode to be loaded (RSADRLSM02) and then

offer input help and validation against this data.  All Good. Tested it works as expected.

What about BUILDING , Room, Floor?

We would like  the Building Room floor and location (street5) data to be consistent too.

Is there some tool or user exit that allows for input help and validation against custom data?

Did sap deliver a standard tool for Internal address management ? Eg details like Room building and location .

What are the pros doing to make sure these fields are maintained properly ?

thanks Phil.