We have multiple customers that are complaining that they cannot draw multiple polygons or measure multiple things on our maps. We are currently using Javscript 4.11. Is there a way i can allow this?
For the measurement aspect, each widget (both area and distance measurement widgets) is designed to clear the previous measurement before starting a new one. It should be possible to use the appropriate measurement widget's viewModel to create new measurements without clearing the old one(s), but you would need to code that functionality yourself.