Thread:Extension talk:VisualEditor/Button configuration / site notice/reply

There isn't an option to remove the "beta" notice menu (though we may change that soon anyway, now that we have the welcome message), no. You could hack it out or over-ride the message.

The various extra buttons in the toolbar will (eventually) only appear if you have those extensions installed, and (soon) they will only appear in the "insert" menu in the toolbar rather than over-loading users with too many buttons.