Practically, you can post freely as a normal post with a hashtag #askthedojo.
Though moderators may filter out questions that may or may not go according the the community standards but, you can still try asking question through posting.
Another way you can get answers and help is through the Community Chat which is highlighted in the Featured Section in the Facebook Group.
Open the chat and request to join or message Aubrey Buenaventura or Ryan to have you invited.