This is driving me nuts - Midi controllers issues

[DocBob]

In piano roll view "Display Multiple Controllers" is grayed out, and there is no little arrow for the "Edit Filter" at the right of the cc lane name.

I've searched for why for an hour with no joy.  Anyone know

[David Baay]

Display Multiple Controllers and the Edit Filter are only active when the Controllers pane is closed and controllers are displayed in the Notes pane. With the controller pane open (as your screenshot shows), you just click the 'button' for controller type that you want to see/edit.

[DocBob]

Thanks David...   makes sense, and I see the multiple controllers data,   but I still don’t see the edit filter arrow..