I want to have my macbook Pro desktop on my monitor, like clamshell mode, but is clamshell the only way?

Hello people,

I have a 13 inch Macbook Pro. I am using my old monitor, and it works fine! I wanted to have the menu bar on my monitor as well, and I found out about clamshell mode. I plugged in my keyboard and mouse, and it worked like a charm. Everything was at a normal size and at pretty high quality! However, my keyboard recently stopped working and I don't want to get a new one. Is there a way I can change my display settings to match that of clamshell mode without actually going into clamshell mode? Thanks!