Change settings on saved hyperlapse mission

[zone]

Got a new Mini 4. I can save way point hyperlapse missions and retrieve them. However I can't figure out how to edit them later to change the interval (length). I can do it when I set up a new mission, but not when I load a store mission.

What am I missing?

Also where (device and file locations) are the hyperlapse waypoints stored. I can find regular waypoints but not the hyperlapse ones.

Thanks!