Version 6.6.2 on Linux Mint 21.1

I use the latest version of software and tested staircasegenerator that workes, Terraingenerator is greyed out and roofge erator is not in the menu

I try to install some tools by copy them to the plugins folder. I have 3 plugins in the folder but only 1 can be used, 1 is greyed out and 1 is not in the menu. What am I dooing wrong

Late answer but the tools menu show up when you create the plugin folder

<t>Hi!<br/>
We live in a L-shaped bungalow. The bedromms are in the "foot" of the L. Thisa part is 0.5 m above the rest of the house. The outer walls are all of the same hight so the hight between the floor and the celing is 0.5 m lower in this part. Is there a way I can contruct this in the program ...

Hi!
Newbi question

How do I place a window on the correct height on a wall. They seems to be places with same distance from floor and celing and that is not correct

Regards