issue with walls

[T_R]

Hello Forum!
Unfortunately I can't find the thread about the issue if/ how to groupe walls.
Is this possible?

I made my nice modelwhat is related on photographys, and I got tofay a satellite imagery ( very uneasy in China in certain quality) of the arwal of this building. Do I learned that the 3- groupe building is not rectangular, one building as a single to two others. What means I have to move, with all interior and roof, one.buildimg. this building has different levels.

Do again, I am thankful for all constructive words and ideas! Many thanks.

Ha, easy everyone can do, it's a hobby.

[Puybaret]

It's not possible to group walls, but you can use multiple selection with a selection rectangle or Shift key to select more than one object and move them together.