How to Use Groove Editor

I use BFD 3.5 and Superior Drummer 3 (SD3). In SD3 there is a Groove Editor function that allows easy editing of grooves. BFD 3.5 has a similar function. But, I have not been able to figure it out with BFD 3.5. I’ve searched YouTube videos with no luck.

Any suggestions how to learn to use the BFD 3.5 Groove Editor?

Thanks!

Have you read the user manual? Page 86 is about the groove editor.