Bannerrecipes for the big amount of Banners cant be shown currently by FastCraft+

You may should add this as a todo point :-)

I decided not to add banners. There are a lot of banner possibilities, and if they showed up in the interface, you would just see random patterns. I thought it would be better to leave banner crafting to the crafting grid.

If you change your mind, BannerMaker has a pretty clean UI for it. That said, it'd require a decent bit of additional work that's somewhat out of the scope of this plugin's normal functions.

I'm definitely not going to add banners to the main FastCraft+ interface with the rest of the recipes. I like the sound of an interface to assist in creating banners, so I may add that sometime in the distant future.