Template trig slices:
Make a template project, and before create a new project, just load template project and “save project as”
In the template project, choose a bank and a pattern you will never use: maybe bank H pattern 16.
Set the lenght per track to track 1 to 16.
Set up every trig and for each trigs, p-lock start point every 7,5:
*0 7,5 15 22,5 30 37,5, 45 52,5 *
60 67,5 75 82,5 90 97,5 105 112,5
In track 2, set the lenght to 32 and do the same but trigs every 3,75
*0 3,75 7,5 11,25 15 18,75 22,5 26,25 *
30 33,75 37,5 41,25 45 48,75 52,5 56,25
60 63,75 67,5 71,25 75 78,75 82,5 86,25
90 93,75 97,5 101,25 105 108,75 112,5 116,25
In track 3, set to 48 and trig every 2,5
0 2,5 5 7,5 10 12,5 15 17,5
20 22,5 25 27,5 30 32,5 35 37,5
40 42,5 45 47,5 50 52,5 55 57,5
… etc
And the track 4, to 64 and trig every 1,875. But it’s not possible so just set 1/2 every 3,75 (like 2x 2 bar - use copy pasta)
Save the template and now, when you want to slice a loop, just go to you bank H, pattern 16, choose the lenght of the loop (16: track 1, 32: track 2, 48: track 3, 64: track 4) go to record step and FUNC+COPY. Go back to your track with the loop to chop and record step -> FUNC + PASTE.
Now you can flip your loop with TRIG+COPY - TRIG+PASTE and you can mute/unmute the track without waiting the end of the sample to play 
I discover you can also make micro choping / time stretch with this technique. Just drop the trigs track on a sampled melodie loop and see what happen 