@CoopNinjask Are you talking about the rope nets on the sides?
For those, I extracted the image out of a tileset made by Celianna and reformatted it into a 3x4 character sheet with image editing software and placed a !$ prefix on the file's name (ex: !$RopeNet.png). This is done by keeping the image size the same, but multiplying the canvas size horizontally by 3 to the right and vertically by 4 to the bottom.
Import to img/characters. Create a single event. Use the image for it. Use the Note box to adjust position/size. Shape is Fence. I had to bump it up to <scale(2.5)> or <scale(3)> to get them that big. Did the same concept for the sails as well as the bowsprit in the front.
I did a minor edit to the tops to bring them in closer like a sharper triangle so it would not be much wider than the 1x1 fringe tile above, giving it a more natural appearance in terms of connection. Also, I had to layer the image on top of itself multiple times to get rid of some of the transparent pixels that was occurring from transforming it.
Really wish there was a way to angle them in more where they would hook near the tops of the masts instead, but straight up to a fringe tile was the best option I could think of with the current build of the plugin.