Unit procedures are the second level in the procedural hierarchy. The steps in a unit procedure represent operations. All operations in a unit procedure must run on the same unit or unit class.
Creating unit procedures is very similar to creating operations. The first unit procedure you will create is UP_BLEND, which will be run on the BLENDER unit class. This unit procedure will run OP_CHARGE (for charging the base and color into a blender) and OP_FINISH (for agitating the contents of and draining a blender). Use Default Transition Conditions when creating these recipes: click the Main button, and then click Recipe Studio Options, Preferences, and Default Transition Conditions.