Deleting controllers ****solved****

I'm working in the PRV.  I have percussion groove clips that has some controller data (I have no idea what it is for).  I only need the velocity for the samples so I want to delete those controller lanes to remove that data.
 
The problem is that I only have the  +  symbol in the key pitch pane for those controllers.
Is there another way to delete these controllers.
 
Thanks in advance.
 

possibly. I know I constantly have issues with the + and - expander/collapser for folders in Track View. The folder will be collapsed, but will still show the collapse option -. I have to click it once for the + to appear and then once more for it to actually perform the expand function. Every session. Also, if you want to delete unwanted controller data (my midi keyboard is malfunctioning and constantly sending weird stuff) i usually go into Event List, deselect notes, and just delete everything else.

I constantly have issues with the + and - expander/collapser for folders in Track View. The folder will be collapsed, but will still show the collapse option -. I have to click it once for the + to appear and then once more for it to actually perform the expand function. Every session

Glad it's not just me seeing that then.

Have you submitted a bug report?