Running BIAB on MacBook Pro. I want to change specific instrument volume for specific bars in a song. When I bring up the bar setting window the screen seems to be incomplete. Volume is indicated there but there there are no tabs there to complete the volume task. I viewed a you tube tutorial on using the bar settings feature and the screen in the video differs in that the slot/tabs are there to facilitate volume adjustments.As stated above these tabs are absent on my screen. Is there a setting elsewhere in program that would activate this feature or is it a glitch of some kind. Any advice would be appreciated.