Follow Action is great, but will be even more intuitive with this feature implemented:
Right now if the leftmost chance A & B controls are set to 0, nothing happens. My suggestion is to use the 0 to indicate that a follow action will occur, according to the quantization setting, every time there´s a note-off or mouse-up event
There are many uses for this. For instance the legato-playing between clips will be much more intuitive. It will be even better if a new "follow action" called "previously played" is implemented. This way you can very easily switch between a mainbeat and various fills with stunning results.
For reference check out the Live-Loop module in the wonderful Devine-Machine or if you are a Reaktor owner look for my LoopBreather ensemble in the UserLibrary.