I want to create various data structures that are static and pre-determined before launch.
My first guess was to use a structure but those have to be instanced and when I choose to add a flipbook data type I can’t preset the value.
I would suggest using Data Tables, they do the job perfectly. Now the documentation is totally not updated, you can do everything through Blueprint now. Just create your structure normally (with flipbook datas and whatnot), and create a Data Table from within the Content Browser. Select your Structure and it’ll create a data table for you, where you can actually setup default values for Referenced Items, like Static Meshes or Flipbook Datas.