Need help with Change to next/before Clip on a Layer in R3

[multisca]

Hello

What is the Button/Controller on the Resolume 3 screen (or midi Control) to go to the next clip (or clip before) of a layer ?
(without use the mouse or PC keyboard.
I don't want to use a note to choose a clip but pass to the clip Next/Before)

Thanks for your anwer.

Arnaud