How to hide markers on roll20 battlemaps from players

Hi all, I wonder if there is a  way to place my creature markers down and make them invisible to my players. I know that if I put a creature marker down, the health and name are hidden unless I let them edit the marker. If there is a  way to make the markers invisible to the players, it would be handy, so I can prep my dungeons with the markers already down and not give anything away! 

Put them on the GM layer. They'll be hidden from players until you move them to the token layer.

Another handy feature of the GM layer, is that players won't be able to see them in the turn tracker either if you roll initiative for tokens on that layer.  The tracker entries will become visible to players once the tokens are moved from the GM layer to the token layer.

ah awesome thanks! I'll do that!