@mlabombarda, thank you for reporting that. I'll fix it the sorting for the "computer | trigger" setting.
I'll look into adding a way to pick a panel, then a button on it from a submenu. I think that's what you want.
In the meantime, you can use the fast-forward and rewind buttons on the Roku remote to page down and up. I figured I'd mention that feature in case you missed it. I find it helpful.
EDIT: I fixed the sort. Thanks again for reporting it.