Importing tilesets from Tiled

Hey. I’m hoping to import assets from Tiled. When I add a tileset in .json format, a window pops up asking me to “choose a DataTable Row Type”. What does that mean, and which type do I choose?

I know is kind of late but I have developed a plugin that makes working from Tiled quite easier than the default version. You can find it here: https://www.unrealengine.com/marketplace/en-US/product/7cde7c5f731743888f4068c8e8c24f6a