KNX - Import/update group adress description

[anve]

Existing objects are not overwritten. If you want to import these objects again you need to delete them first.

Example:

Import 1:
GA 1/1/1 = Light 1 ON/OFF

Import 2: 
GA 1/1/1 = Light Office 1 ON/OFF


I just want to update the description of the existing objects in the import. If I delete all objects, I have to setup the object properties för each group adress again I guess?