Can't find note expression tool in the inspector

Hello,
I’m trying to edit my midi tracks with the note expression tool which I’ve seen in a few videos but it does not appear in my inspector window. Does anyone know where I can locate this tool?

Hi,

right-click inbetween two tabs in the Inspector, and enable the Expression Map or Note Expression from the list. Or click to the cog-wheel down in the Inspector, and do the same in the GUI window.