1. There are probably better ways to achieve this, but you can manually create a new window with one of the evil-window- and evil+/window- commands (bound to "SPC w" prefix by default) and switch to repl buffer using "SPC b B" 2. You usually don't want to send code to repl directly (or, equivalently, paste, which "C-c M-p" does iianm) but let cider evaluate it (former evaluates it in whatever namespace the repl currently is in, latter switches to the namespace your code defined last for span of evaluation), e.g. via "SPC m e e" (cider-eval-last-sexp) -- see "SPC m e" and "SPC m p" prefixes for more commands

@U9TGHG3LP thank you so much for the tips, it works like charm for point no 1. I'll try point no 2... Thanks again! 🙏

If your cursor is in the repl, I believe C-w L will move the window to the right vertical split