Sets the content of your FBCMD profile box
See the syntax page and the parameter defaults page for information on setting your default parameters.
The Command Line Box on your profile page will contain the contents.
See the general preferences page for a list of preferences that apply to all (or most) commands.
Use the command at least once, for example:
fbcmd DISPLAY "hello"
then go to the Applications --> Edit Applications (bottom left area of your browser).
Find Command Line (try Show: Authorized if it doesn't already appear) and click [Edit Settings]
The Box will now likely be on your Boxes Tab... go to that tab, find the Command Line Box, click on the pencil and Move To Wall Tab (if you have space)