The following diagrams show the preset Serato Video mappings for the Video group on the Rane Sixty-Eight. This is group 5 on the Sixty-Eight, and can be accessed by pressing and holding the Layer/Shift and Cue Button 5.
Once in Group 5, use the layer button to switch between effects control, and transitions control.
* these mappings are only available in Scratch Live currently. Please get in touch with firstname.lastname@example.org if you have any more questions about functionality in Serato DJ.