I’m finally getting around to trying out the IA calendar and immediately ran into the fact that it is very cumbersome to manage attendees. There is no option to bulk add only scouts, and there is no way to deselect any of the groups, instead only being able to deselect everyone.
It would be much easier if the select/deselect groups were toggles instead of separate select and deselect options, and if it included groupings for scouts, leaders, parents, and all.
