IIRC what you're calling PRIMARY is actually just clipboard and what you're calling SECONDARY is in fact PRIMARY. There is a third buffer, SECONDARY, that's mor

IIRC what you're calling PRIMARY is actually just clipboard and what you're calling SECONDARY is in fact PRIMARY. There is a third buffer, SECONDARY, that's more useful inside text editors and allows you to select text with the mouse without moving the cursor by holding control (meta/alt in emacs), selecting the text you want and pasting with middle click.