Welcome! This forum has a treasure trove of great info – Scouters helping Scouters! Just a heads up, though - all content, information, and opinions shared on this forum are those of the author, not the BSA.
These are necessary features for logging cumulative activity hours and mileage toward the National Outdoor Achievement awards as well as merit badges. If advancement.scouting.org allowed us to log these activity types it would be incredibly simple to keep a running tally.
(As a follow up, I see this has been requested many many times over the past few years so hopefully this is finally moving up the list and will be added soon. I have been tracking relevant activities manually for National Outdoor Awards in notes but doing so is incredibly time consuming and I don’t have historical info about activities that weren’t logged and occurred before my son joined this year. In my head this seems simple as the logging functionality largely exists, we’re just asking for additional activity types and sub-categorizations to appear in the selection menus.)