Taken from the Clique description page (
http://www.curse.com/addons/wow/clique):
Managing click-sets
Each binding can belong to a number of binding-sets. These sets determine when the binding is active. The built-in binding-sets are as follows:
default - This set is always active on registered unit frames, unless overridden by another binding-set.
ooc - This set is only active when you are out of combat. Once you begin fighting, these bindings will no longer be active.
friend - This set is only active when you are activating a binding on a friendly unit, i.e. one you can assist.
enemy - This set is only active when you are activating a binding on an enemy unit, i.e. one you can attack.
hovercast - These bindings will be available whenever you are over a unit frame, or a unit in the 3D world.
global - These bindings will be always available. They do not specify a target for the action, so if the action requires a target, you must specify it after performing the binding.
Look at the clique options to create binding-sets.