Help with a mapping in Serato

Help with a mapping in Serato

I got a Kontrol X1 and got everything I wanted mapped except for one thing I cant find and was wondering if anyone knew how to do it.

I want to use the push/click feature on the loop size knob to cut my loop rolls and auto loops in half>half>half so forth and so on.

If anyone knows how to do this I’d greatly appreciate it!! =D

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