I am currently working on a sequence which needs a tight beatsync on sequences and effects when I noticed that this is currently pretty hard with the Stop Motion and the Strobe effect: the frequency can be adjusted but is not beatsynced.
It would be great to have a new control on Stop Motion with two states: ON is "clip runs" which mimics the current Frame Count control and OFF means the frame is frozen. This could then be synced to Timeline, BPM etc. and an envelope would even allow uneven timings.
For the Strobe effect I would suggest a similar control with ON means strobe is lit and OFF means strobe is off. This way also the duration of the strobe flash could be controlled. Also Fade can be integrated nicely by an envelope on the strobe level extending the binary ON/OFF to intermediate levels by using a ramp envelope.
I'm looking forward to your feedback, merry christmas and have fun mixing! -- Dago