New feature request - Rtl descent alt

Sorry if posted in the wron place
Would be nice to be able to set rtl to also descent to a specified alt, at least when rtl in auto mode. I undesrtand why it should maintain or climb but landing from 150-200m takes a lot of time and lose of stability. When planning this parameter could be easly figure out, or left to 0 to rtl as normal
Maybe ?

While aditional wp can be set will be very usefull for battery failsafe in large survey missions that takes couple of flights to complete.