The leaf table was an option, more frequently selected on the 4500, (part of the Deluxe package) but available on the 1300. I like the table without the leaf. It is like a bar table then.
If your trailer came with the leaf table, Trillium
should have already installed a block of wood, under the ensolite, on the back wall of the closet, that has a sliding bolt type of gate latch. Also another block is installed on the bottom of the closet. This is about an inch, maybe an inch and a half from the back wall of the closet. The side of the leaf is inserted in the groove made by the bottom block. The bolt is slid up to insert the top of the leaf. Then, the bolt is allowed to fall
, holding the leaf in place. The top of the table, that is visible when the leaf is in use, should be facing the back wall of the closet, because the sliding bolt beats up the leaf while in transit.