It makes no sense that the button to add a manual activity is only available on the Activity calendar view. It should be on the list view too. Or even a “+” in a circle at the top or bottom of the global sidebar, as Google tends to do. It needs to be somewhere obvious.
Related, is there a way to add an activity from a template? I do a strength workout every week and it’s almost always the same duration and load. It would be nice to be able to select this and add it without having to fill in the numbers each time.