Flag the topic title of your post with the following flags, as necessary, if you're really excited about using one.

[IAO] - In and Out
eg. Topic Title: In Which Sicila Kills Everyone [IAO]
Topic Description: (blank)

Description:
For posts that don't merit more than one response per person. These are not often useful, but can come in handy when trying to get everyone to update themselves to a specific event. It is mainly for something which would have bearing on other posts.

Example of Use:
A Marshal holding a class for the specific purpose of issuing an item which the inmates would carry around (thus affecting future posts), or instructions which might merit changes in behavior (thus affecting future posts).

[ISO] - In Search Of
Eg. Topic Title: In Which Sicila Kills Everyone in Alecto [ISO]
Topic Description: Alecto Inmates

Description:
Obviously, replace the Topic Description with who you want, be it a player, a group, multiple players or groups, or maybe specific numbers, like "1 werewolf and 4 Tisiphones." Note that this is just a recommendation and does not prevent others from joining your post. On that note, please don't add the word "open" or "all" "any" anywhere. You don't need to tell us you're in search of anyone to come roleplay with you. We know.

Example of Use:
A Marshal holding an experiment in which he needs very specifically a handful of Muggle-born inmates to determine if a potion is less effective on impure blood, poor things. Poor, poor things.