Is it possible to send an element of the data object that will pre-populate the message when publishing a stream?
Also if anyone can carry through any kind of LF/CR in the description field then please let me know - I have tried n, r, <br>, <br/> and all combinations but they all get stripped.
I'm almost positive this is against Facebook's Terms of Service (TOS) the only kind of pre-populating you can do is a "attachment" or link (like sharing a video).
There is a description you can set which will appear above the message box. This is where I guide the users on what to write.