I would like to ask if the following is possible:
When a Marker is moved or deleted -> tell/register a selector callback.
Otherwise some set of shot data (keyframes) has to be recalculated upon on the next PF_Cmd_UPDATE_PARAMS_UI call, which is not as great as PF_Cmd_UPDATE_FUNKY_MARKERS or something similar.
When they are created - no problem as PF_Cmd_UPDATE_PARAMS_UI is caught.
many thanks
mike