When a "Label" field is added in EndNote, and the enlx file is created and imported to DistillerSR, all of the fields will be imported with the file.
However, these will only be added as a field entitled "Label" for a reference, not a designated DistillerSR Label. The label text from EndNote will not show up when choosing to display Labels in Datarama (on the Reference Display Options tab). It will show up as a reference field (Tag) called "Label", as shown below.
If you create a group in EndNote with only the references with a specific EndNote label, and compress just that group, you can add a bulk label for that enlx file on the Find and Import References screen.
This can be repeated for other Labels as needed with different enlx file uploads.