We are seeing a need to support field masking in Field Maps. Some fields have a predefined notation, such as stations of measurement, and it is cumbersome on a small device to have to change keyboards 2 or 3 times to toggle between letters, numbers and special character each time. It is currently supported in Survey123 and should be brought to Field Maps.
Our use case would setting the default mask to accept xyz+xyz for station measurement, where it would automatically prompt the number keyboard as well as populate the + sign in the appropriate place.
Would be useful as well for things like phone numbers xyz-xyz-xyz or other codes.
Even better if we could just calculate this automatically using attribute rules or Arcade expressions... hopefully one day.

Thank you