i would like to being able to (also) decide a different mirror pivot position and rotation( based on the world coordinate for an higher precision) when using the mirror effect or the mirror in general.
Justification
For example, to position a graph element decal in a side of an asset and to mirror it in the other side by using a custom pivot position or the world center position to mirror it. Because the actual behavior just use the active projection pivot as symmetry point, while within this cases it should work with an independent pivot.
Implementation
A menu in the parameters which let you chose between: active projection; custom pivot(based on position parameter which start at the world/canvas center position).
the custom pivot should have a custom: rotation; position. to decide from where it should mirror, in which direction and how much the original and the mirrored part have to be offset based on the custom pivot position.
Reference
This demonstration is in 3d using the grease pencil and the mirror modifier of blender bu i think it would be done as well in texturing.
an InstaMat use case
