Hey @DoaaElshishtawy ,
Since the time that this post was originally made in 2022, we have added a component called DF Process Alleyways, which does something very similar to what you are suggesting. You basically give it a distance between buildings at which point the walls should be considered adiabatic parti walls like so:
You can see it’s in the LBT 1.7.0 release notes. So, by the looks of your screenshot, you’ll have to update.