Manage private, character-based scenes set in the past.
Usage:
flashback
flashback <id>[=<number of last posts>]
flashback/catchup <id>
flashback/create <title>[=<summary>]
flashback/title <id>=<title>
flashback/summary <id>=<summary>
flashback/invite[/retro] <id>=<character>
flashback/invite <id>
flashback/uninvite <id>[=<character>]
flashback/allow <id>=<character>,<number or all>
flashback/post <id>=<message>
flashback/conclude <id>
Only invited characters, the creator, and staff can read a flashback.
Invites show future posts; /retro and /allow reveal earlier posts.
/uninvite without a character removes your own access.