If you add a few different coordinate system options to WAB Coordinate widget, it does not label them. For example 2239 in the following: Decimal Degrees, Degrees Mins Seconds, MGRS and USNG. Edit:::: this is apparently included, as of WAB 2.11 (?) so can be marked as Implemented.
You already have the ability to edit the label for each coordinate system used right in the the widgets settings dialog. Just double click in the table on the label.
Sweet. I see it. I was using WAB DE 2.9. It's been on my to-do to upgrade the property mapper I released to 2.11 or 2.12. I just tried using the latest one (hosted online) and sure enough it is there indeed. Awesome! Thanks for the heads up Robert.