I’m not sure if you’ve accessed the online manual yet, but the section on the Looper functionality is comprehensive:
But first, you have to get to the Perform mode:
And below that, specific to assigning the footswitches:
I don’t know if there are any Eventide videos, directly related to the Looper. But I have posted many threads over the years on how to ‘push’ some of the Looper functions, if that will help.