I”m not quite sure what you mean.
An object either is or isn’t mirrored.
You can always force an object not to mirror.
If it is mirrored you just MUL2 -1,1 in 2D and MULx -1 in 3D.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10