WF 4.8 sort order in data item mapping

I've created a hugh form in new Formbuilder with about 100 fields.

When assign the created form in the Workflow I can see all fields in Data Item Mapping in an unsorted way.

Has anyone an idea how to sort the items by name or key in the Data Item Mapping section of designer?

And the second question I have is, how can i disable the mapping of fields when they are of type label, so they don't get displayed in Data Item Mapping.