The folders are typed: the value of the sModel field specifies the type of data that can be contained in the folder. navigate to data schema > xtk:folder > data (tab) > configure list > add @model (Template) We can see model for each folder as below image. So when we create a folder of type 'workflow', its model will be 'xtkWorkflow'. We can't put any other different type into that folder. For example, we can't drag and drop workflow into data schema folder. The cursor icon will change as below picture.