Octatrack: How to use the Flex Machine for Live Looping

Discussion thread from a while back:
http://www.elektronauts.com/topics/view/8767

Some relevant excerpts:

How I did it, step by step (please fill in):
1. Load a Flex machine.
2. Set it up to loop on, slice on, len to for instance 32 for recording 2 bars.
3. Set up recording of wich input by pressing function and "rec A B".
4. Enable record button for inserting record trig on the first beat (red light).
5. While record button is still enabled, push function and the beat you want to play it from (green light).
5. The playback trig should be red not green (trigless trig/lock)
6. Press PLAY and see what happens. Having LOOP set to ON doesn't change that much the result. 

If you set the internal input SRC3 of this track to CUE as the recording source, all cued tracks will be recorded, even if they are muted. So the trick ist to have one track with a flex machine playing its recorder buffer. Set this track always on cue and than just cue the tracks you wish to record and proceed as i wrote above. Perfect loop and layer.