as far as I know there is no way to display m, f, or other gender selections that said anyone can use their status line to display anything they want others to know for example my status line usually says lesbian, mother, wife, treatment provider, by reading my status line people know I am a female, sexual orientation, have children, married and my chosen career. that way people are less shocked by my posts. sometimes I edit my status to designate when I am on vacation so that members can see that I may not be online on a regular basis. Sometimes my status line is wishing others well during the holidays... my point you can put anything you want in your status line.

to customize your status you go to your profile, and then click on edit where it says you have no status. then write your status line, then click the word edit again which will set your status.