Actions
Use the a: parameter to list one or more actions (see Actions).
a:[action keys]a:[action families]
The “action key” is a unique identifier for each action type, like block-break.
The “action family” is the word following the hyphen in the action key. So, break for block-break. Sometimes, actions are similar and you may want to query multiple without listing them individually. Example: hanging-break and block-break are both in the break family.
To lookup all “break” actions, use: /pr l a:break (includes any actions that match *-break)
To lookup multiple specific actions, use /pr l a:block-break,block-place (includes only results for these two actions)
Negation
As of Prism 4.4, this parameter allows negation. Negating an action will exclude results. It is important to note that unlike Prism 3, the syntax has the exclamation point before the colon. You cannot use a negated parameter with its normal equivalent.
Example: /pr l a!:break (Queries all actions except "break")