edit percussion kit greyed out

Hi there. This is the first time I’m working with percussion instruments. I’ve added claves and maracas and the parts are all written out, no problem. However, I can not get back into edit the percussion kit. The menu text is greyed out for both instruments. I wanted to change the stem direction but cannot edit the kit. What am I missing here?

It’s not a kit: it’s a single instrument.

You can change that instrument, or you can drag its card into the maracas to create a combined player.