I saw a similar add on that pops up a message box with a few functions, but me personally, as a RPer i wanted something simple and instant.
So I came up with this mod.
It has one function and no settings. No options. All it has is a slash command /ooc
How does it work? Simple.
Install the addon, load WoW up, and then type this in your chat box:
/ooc Just testing a mod out.
What gets printed is:
(( Just testing a mod out. ))
That's it.
Converts anything you type after the /ooc into double bracketted RP OOC text. For those that don't Role Play, don't worry, click your back button now. ;-)
It will only do this in the /say channel. Since that's where you do most of your RP, that's all that I feel is really needed.
Enjoy.