Group & Ungroup , Open, Attech, Detach,Explode & Array , Mirror & Convert to editable Poly-

1. Render short Command -Press F9.

2. Group & Ungroup

   Select objects

   Click group / Ungroup

" Open

 Modify

 Close Group.

"Explode

Select objects

Explode.

" Attach

Select objects All

Attach.

" Detach

Select Group and Detach

3. Select Object

Tools

Array

Array Dimensions -

- 3D   X      Y      Z

Ok

4. Mirror-

 Right Click

Mirror world

* Transform 

Mirror Axis -

* X

Ok

5. Select Object

   Right Click

Convert To -

Convert to editable Poly.

* vertex

* Edge

* Border

* Polygon

* Element

Vertex-

Select Object

Vertex

Offset -

X / Y / Z.

Thanks to Google

Thanks to ChatGPT