I agree that it is old and broken in weird ways, but to address at least a couple of your problems: When you bounce a loop out, ReCycle will append its fading tail onto each slice for slower tempos. If you want to hear this pre-bounce, hit the 'preview toggle' button (on the left of the transport bar, looks like a knob with a play arrow on top of it). Ctrl/cmd+1-4 are the keyboard shortcuts for the mouse tools. I also think that since the idea is you creatively arrange it in the destination sequencer, fancy groove tools in ReCycle itself would be redundant and potentially limiting. All of this falls apart, of course, when you have to spend about ten minutes on each loop cleaning up your slices.