Configure the AddOn to your preferences just once and it will help you divide marks amongst your party- and raidmembers every time you group up, entirely automatic. It doesn't only register if the CC is available in your group, but it also assigns a temporary mark for when there're two players who can 'cast' the same CC (e.g. two mages, two sheeps).

Default configuration (in kill-order):
- Star: sap
- Square: trap
- Diamond: shackle
- Moon: polymorph
- Circle: hibernate

Registered CC abilities:
- Sap (Rogue)
- Trap (Hunter)
- Polymorph (Mage)
- Shackle (Priest)
- Mindcontrol (Priest)
- Hibernate (Druid)
- Seduce (Warlock)
- Banish (Warlock)

MarkMe available commands:
- /markme help <command>
Shows specific help on a command, or general help is no command was supplied.
- /markme assign <cc> [_auto||<player>] [_triangle||<mark>]
Will assign the supplied <cc> to a player. If 'auto' or no player was given, the player will be automatically chosen.
- /markme move <mark> to <mark> [_||copy]
Will move the assigns on mark1 to mark2, losing the settings on mark2. If you supply 'copy', it will swap the two instead.
- /markme tank <player> [_skull||<mark>]
Will assign a tank mark for the specified player. Not supplying a mark will chose skull by default.
- /markme offtank <player> [_cross||<mark>]
Will assign an offtank mark for the specified player. Not supplying a mark will chose cross by default.
- /markme clear [_||all||<mark>]
Will clear the marks from their assigned players. Supply the 'all' to erase the marks from their CC as well. If you chose to supply a mark instead, only that mark will be cleared.
- /markme divide
Will divide all undivided marks to the players able to cast the specified CC of the mark. Automatically called if your group changes!
- /markme fill
Will temporarily (until re-divide) assign a mark to the players in the party/raid that have CC abilities without a mark. To be used after /markme divide, usually.
- /markme show [_||w||g||raw]
Shows the settings of the marks. Not supplying a method will report it to you only, using a 'w' will whisper everyone their own marks, using a 'g' will report it to party/raid. Raw is a raw output so you can check mark/CC combo's.
- /markme order <mark> [_||<mark>] [_||<mark>] (etc.)
Sets the order in which the marked creatures should be killed. First mentioned mark first, last mentioned mark last.

In the explanations, symbols are used to allow easier setup. A word in between < and > is supposed to be replaced by the thing it represents. Words between [ and ], possibly divided by the OR separator || represent an optional choice. The default choice within optionality brackets will be prefixed by an underscore.