Description of the add-on's functions:

1) Adds a Pie menu for adding primitives with the ability to change their parameters after scale\rotate and other operations.(Default: shift + A).

2) Adds several modifiers. For example, Unstack overlap, which allows you to take out overlaps.(Default: `)

3) Quickly select mesh islands on double click

4) Mirror objects with preserving custom shading (Default: ctrl + X).

5) Group cleanup of custom shading (Default: ctrl + X)

6) Group renaming of UVmap (Default: ctrl + X)

7) Assign custom checkers (Default: ctrl + T)

8) Quickly merge/separate objects (Default: shift/ctrl + Q)