Backspace in emacs
Your response to my last question (thanks!) pointed me to the Connection Profiles' Input tab, which has a "Send Backspace as Ctrl-?" option.
When this is turned on, Ctrl-h in emacs (which apparently should invoke help) sends a backspace.
When it's turned off, Ctrl-h invokes help but so does Backspace.
In both cases, direct entry of Ctrl-? seems to do nothing.
Backspace to Delete is an obvious solution, but backspace then doesn't work in the minibuffer (it appears as DEL rather than removing the previous character).
We’re not sure what the issue is here, but we intend to investigate this further once v2.42 is released.