Edit code during debug session on Android

Hi guys! This seems to be a quite noobish problem, nonetheless, still encountering the issue...
Some details: Xamarin Forms, PCL, Android emulator.
Is there any way to edit the code during a debug session? Also, is there a way to step back in the code during debugging? I assume the target emulator is not capable do these things, or is it? I also have a physical Android phone, which might help the situation.