I did not understand whether OIS on specific lenses overrides the IBIS on my X-T4. The manual specifies that the command on the lens does override the menu item on the camera software, but I cannot judge if this issue applies to the COMMAND only or to stabilization itself. This because I want to use the IBIS instead of OIS. Actually, if I turn on the OIS switch, the IS option on my camera is greyed out.