Add examples keybord clicks and selectionts on my message with plasticity gifs
1 Loop surfaces select
One click \ second click
Example with step, first click on bottom step second click on second step and selecton from this polygon continues to end "polygon" chain on this surface.Or its work with surface normal,and create selection from average normal of selected polygon.
Example second on different solid, first click on first polygon second click continues "polygon" chain on this surface

2 Kitbashing placement with copying selected object with ability to scale it
Details on my previous message,i cannot fully repeat this in moi

3 Ring select
it will be good if its work on two sides vetical edges and horizontal

4 Select adjacent \ select more \ less
Selecting surfaces more \ less with buttons it will be nice
3 screenshots of stages

5 Full edge loop select by one click