It would be really great if when you change the symbol from a circle to a checkmark, for example, it shows in the take-off legend. Is this already possible via a setting?
Yes. Currently, we always display the count symbol on the takeoff legend.

Is this what you were after, or were you talking about a different location?
Thanks for the clarification! I've moved this post to feature requests and relayed this info to the dev team. 🙂