Is it possible to inset both faces either side of a mirror line together?
70883
How to inset near a mesh boundary without creating new border faces?
15937
How to flatten a non-planar face to a targeted plane?
8473
How to inset a face?
144536
How to flatten a face to avoid distortion (make an ngon planar)
50588
Mirror Modifier making ugly smoothing on mirrored faces
33327
How to fill a rectangular hole with an even amount of vertices on either side?
52965
make the 2nd line fill up the gaps above
129199
How do I mirror the faces of a cube (edit all of them when I edit one)?
2647
Inset in Blender not coming out even
128145
Is it possible to deselect freestyle edges?
6973
Is there a way to Inset in the opposite direction (not Outset)?
55011
Adding holes simultaneously within mesh
129611
How to solidify edges
122140
How can I copy one side of a rig to the other?
124510
Extrude in same angle?
21396
Mirror modifier mirrors on different axis/axes from the selected one(s)
80237
Put two figures side by side