what do you mean by 'wave part'?

[liondyi]

what does it mean by wave part in this section? if it means the waveform preview underneath the notes when editing a part, then right-clicking it doesn't do anything.

apologies in advance if the answer is really simple and i just look dumb

[circuitb0red]

its talking about audio files that you've imported to the project! you can do this by clicking "File > Import Audio..." or by dragging and dropping an audio file into the program.