Keying Flag Items
- INSERTKEY_NEEDED:
Only Needed.
Only insert keyframes where they’re needed in the relevant F-Curves.
- INSERTKEY_VISUAL:
Visual Keying.
Insert keyframes based on ‘visual transforms’.
- INSERTKEY_XYZ_TO_RGB:
XYZ=RGB Colors.
Color for newly added transformation F-Curves (Location, Rotation, Scale) and also Color is based on the transform axis.