how do i change the volume of ONE part?

[A random cat]

I've been trying to make something, but I need to make some parts quieter, and some parts louder. How do I do that??

[MeeM]

markers

[Lopyt]

You can use markers, or if you mean the volume of instruments, there is a panel that could be opened with a button close to the instrument drop-down.

Please read LucentTear's guide if you want more information of markers

[Jimbo]

Sharpies.

[Firebolt391d]

Click the hamburger/settings button up at the top (to the right of the music note button). It will pop up a whole new section of settings. Each instrument has its own volume control.

I hope this helps.

[Benvisions]

markers!