Are you referring to your Ons and Offs? Or to making character profiles? Most people create individual characters for each roleplay that they are in, although some have 'favorite characters' that they might detail in their request thread, on the Wiki, or in an On/Offs posting (There's a forum for each player
gender, so yours would go in the ONs and OFFs - Lords
board, regardless of what characters you intend to play.)
As for your personal Ons and Offs, you have the option of putting a post in the board I've linked, or hitting the 'Ons and Offs' button at the top of the forum to go to a more matrix-style (checkboxes and the like). Many people do both, to cover all ways of finding and being found by potential partners.