You got it. I have not tried that, but that is exactly what you would do. Just set the "adminboard" forum keyword to whatever keyword you would like to use, and the above will dump a new "post" in that board instead.
You could run this a few times on a few different pages - OR you could set a drop-down box with values equal to your keywords - and let people select exactly which forum will have the information dumped into.
Good stuff!