Getting started with G6 & xdrip

I’m trying to enter “treatment” options for insulin and meals to make better sense of my timelines. This is straightforward from the watch using the three dot screen, but is there a way to do it from the phone - I don’t see an equivalent to the three dot menu there? And more important, is there a way to do it for a time other than “now” if you forget to enter it immediately? The three dot menu allows treatment types BG, carb, insulin and time, but I don’t know what the time option is for. If it is to change the time to record the other treatment types then I can’t figure out how it is used.