Limits are for physicists.

The single->multiple IR translations don't have any programmed limit, so I guess you'll only be cut off by available memory (not likely).

So if you want to string 100 button presses together in response to a single button on some remote, then go for it.

Things like:
XXX=menuok,next,next,menuok,prev,menuok ;selects "transient" info

(replace words with actual IR hex codes).