Really easy to do… once you enable the control that allows it.
- Preferences > Advanced > Show Advanced Tools
- View > Customize Control Bar and Display
- under LCD, select “Custom” from the dropdown
- enable Varispeed by checking the box
- now there’s a “Speed Only +/-0.00%” window you can use to drag the tempo up or down a percentage.
Works flawlessly with Cycle (loop) functions. Will even stay sync’d with anything external that’s linked via ReWire.