Select "Use Retouch Workshopshop" from the Retouch drop-down menu. Click the Retouch brush to load Photoshop. 1. Select the retouch tool/effect. 2. Select how you would like to apply the edit/effect. 3. Adjust how the tool will be applied.
Select "Retouch in Photoshop" from the Retouch drop-down menu. Click the Retouch brush to load Photoshop. Click "Save Retouched Photo" when you are done editing to return to Darkroom.