[SOLVED] loop move? (not in or out adjust)

Hi,

first day with Nexus' today but I cannot seem to figure out how to move a loop (by a beat for example) when it's actively playing?

I don't want to use the in and out adjust to do this, that is futile. This is a function I  have used extensively in Traktor and something I would like to use on these decks (without integration).

Any ideas?

thanks