I haven seen any post on the Blue Push pin. It's a hidden secret.
If you go to where you can change map style and look up and see the H with a curdle around it . Click on it  and then touch anywhere in the map it leaves a  blue push pin and zoom out and point you drone directions arrow toward it and fly to the blue push pin. Then if you want touch somewhere else and then fly to the pushpin again. .
I know this works in the MM and am pretty sure it will work with the Mini 2.
Doug
I just went and tried it again.  No matter where the Blur pushpin is on the map it still goes to the RTH and lands so in my test it dose not change the RTH location. To change the RTH location where the control is you have to go to safety to do it.
Would someone else try what I have discovered to verify it.
Even though the icon at where you turns on the push pin is a H in a circle it turns on and off the pushpin.

I haven seen any post on the Blue Push pin. It's a hidden secret.
If you go to where you can change map style and look up and see the H with a curdle around it . Click on it  and then touch anywhere in the map it leaves a  blue push pin and zoom out and point you drone directions arrow toward it and fly to the blue push pin. Then if you want touch somewhere else and then fly to the pushpin again. .
I know this works in the MM and am pretty sure it will work with the Mini 2.
Doug
I just went and tried it again.  No matter where the Blur pushpin is on the map it still goes to the RTH and lands so in my test it dose not change the RTH location. To change the RTH location where the control is you have to go to safety to do it.
Would someone else try what I have discovered to verify it.
Even though the icon at where you turns on the push pin is a H in a circle it turns on and off the pushpin.