Thanks for testing it.
1. Modeller3D will never be as powerful as Blender or AOI, but...
2. I tried to reproduce what you did.
2.1 I selected all the side edges.
2.2 I subdivided all the edges.
2.3 I reduced the height of all selected vertices.
2.4 I selected the top 4 vertices and used Inset several times.
2.5 After saving and applying the texture (25%), this is the result.
Working time < 1 minute.
3. What's the issue with the textures?
4. About coordinates. The plugin displays the coordinates of the first selected point (even if edges or faces are selected).
By modifying the displayed coordinates, all selected points/edges/faces will be modified accordingly based on the difference between the entered values.
@Xlance Thanks!
Your suggestions Rotate and Scale is very good. I'll see.
I know about flickering, I don't like it too but I'll try to improve it.
BTW Relatively the same happens with Roof Generator preview.
Translated with DeepL.com (free version)