Thank you very much for your time and your patience with me.
I owe you the truth, I made a mistake assembling the knots. I put a «Bind Évent To on Component begin Overlap» in second position instead of an «end overlap», as you can imagine it did not work very well, hence my questioning.
By fixing my mistake, everything is working perfectly.
I’m still interested in your second solution.
Obviously I don’t quite see how you do it, you talk about «trace» and this with the «break hit» function
results” or similar?