i posted this on another thread, but might aswell do an overall so every moded can potentialy see this:
1st set the gameeditor to designer:
open console using \
type :
daed4.pick_rendinst (enter) will be set to true
daed4.show_nonscene_entities = true
press Q to select the tool
press and hold SHIFT key (very important lol) click on the item you want to move, then drag over the object you want to move, copy drag what ever, when you selected what you want, you can release the shift and do your magic.
.
this way you dont need the tedious rendist - bake process.
hope this is usefull for you guys.
(i ill post more commands as i find them, i havent wasted much time on the editor so far)
edit: trying to find a command to select everything inside an house . will post if i find it.