The level editor lacks one handy detail, and that is to select several vertexes of the brushes and manipulate them with the mouse.
I have previously made maps for Counter-Strike 1.6 and in the unofficial J.A.C.K. editor for GoldSource and idTech 1-3 engine games this is very easy to do:
Video: https://drive.google.com/file/d/11O0YaByw9axulKGelEPELlcSeWUXpxNR/view?usp=sharing
But I can't do the same in Ultra Engine:
Video: https://drive.google.com/file/d/1SXc38WFq0hL31n4lb6oOznuKTc_5FYXa/view?usp=sharing
And also there is no way to return as it was before the change (Ctrl+Z doesn't work in this case).
It would be very convenient not only for me, but for everyone. If such manipulations with brushes will be convenient in the future.