In ToonBoom Studio, when I have a cycle, there is an indicator in the timeline of the repeated cycles. And the cycles information is remembered such that I can click on the layer and reduce or increase the cycles. My understanding of Harmony is that the frames in the cycle are just copied and pasted over and over for the number of cycles asked for at cycle creations. In Harmony today, once the cycle is created, the cycle-ness is lost.
I like the ToonBoom Studio behavior (MOHO has it too) where the number of cycles is adjustable even after creation.