Is there a way to make it so that when I use the "c" command to change to a different folder, the original one remains open?
My ~/Maildir/ folder has 10000 messages, and my =sent folder has 6000 messages, so it's slow to switch between them if they get closed each time I switch. BTW, I just noticed a minor "bug": If I'm in my sent mail folder and I compose a message, it will say "Mailbox was externally modified. Flags may be wrong." due to it writing a new message into the sent mail folder.