hmm, interesting, i dont really think this is possible with midi clock.
(if im understanding your intention, which im possibly not)
midi clock has no concept of bar/beat just ticks (much finer grained) and clock start/stop.
(this is the disadvantage of midi clock over a few other more elaborate sync mechanisms)
so the pyramid sends stuff when the transport is running (after a clock start), so in this sense, the answer is get your clock source to not send clock start till you want the pyramid to start…
but i guess this is not what you want? since you might have multiple devices listening to the same clock?
i guess, what you could do is use a muted sequence, then just switch to the ‘live sequence’ (which can be a sync’d switch) - thats probably what i would do.
… one thing, that would be interesting, is if you start having multiple midi slaves off the same clock, and you do this, how in sync the bars actually are, midi clocks can take a short while to stabilise after start/stop, so not sure if this might throw it off.
im interested to hear how the E-RM differs, as perhaps im missing something?