Sometime, when I plan a flight, I consider for some legs, multiple choices. I.e. imagine my route is from A to F.
On option is A - B - F, another is A - C - D - F. The effective choice may depend, once in flight, by weather condition, ATC clearance and more. It would be nice if, in planning mode, I could enter, in the some route, both options and, in navigation mode, through a switch, I could activate one branch or the other. Today, without this function, I prepare two routes: A - B -F and A - C - D - F. If I decide to switch to route A - C- D - F, I have to click the Skydemon menu, click on Route, then select the new route.

Massimo Mangia

I-PPL

In reality that is what I do, but it is a special case because I'm going direct to a waypoint on my route. If I had to add new way points which weren't part of my original route, that trick wouldn't work.

To be fair to Tim and the SkyDemon team, the recent addition of the ability to rubber band in flight mode has also helped, but I can still see some advantages of having multiple alternative route pre-planned.