I was thinking about this the other day - I watched a video about the acme editor and it was showing off text editing in a shell buffer, much like M-x shell. I realized I haven’t yet found a terminal emulator that will let you select text with a mouse while you’re editing in the shell. It’s such a simple thing that would be so useful, especially on a Mac where CUA bindings don’t conflict with terminal escape codes. iTerm lets you Option+click to position the cursor but you can’t select a word with the mouse and press ‘delete’. Why? It seems like such a simple thing to do.