Hi fbp
1. No - 300Mb should be unlocked by applying Enterprise VM license - nothing to do with SWA (tried restart the system?)
2. Control outputs - never tried - but you will need FXO port -> change port type to Control output in Configuration ➙ System ➙ Interfaces ➙ Analogue ➙ Analogue terminal interface (entry). Then, according to the document, you can open with *74 <Call number1)> or close with #74 <Call number1)>.
More info in document syd-0570, page 474.
BR