I'm trying to use ArcGIS Modelbuilder to streamline the construction of a new, empty file geodatabase. In the model I first use the Create File GDB GP tool, then I import the data model xml (schema only) in that new File GDB. This new File GDB now contains a feature dataset- but I want the user to be able to specify the coordinate system and change the xy tolerance & resolution. So I apply an Iterate Datasets iterator to locate the feature dataset in the new File GDB, and I then use the Define Projection GP tool to specify the coordinate system I want that feature dataset to be in. However, the XY tolerance and XY resolution setting need to be changed for this new feature dataset. I've tried adding Linear Unit variables to the Define Projection and Import XML Workspace Document processes but with no luck. Here is my model:

Any help would be greatly appreciated. Thank You!