Alias Coordinate System Names in the Web App Builder Coordinate Widget

[BrianHaren]

Currently the coordinate system names displayed in the Coordinate widge in Web App Builder use the raw and complex default naming conventions. These naming conventions are often too confusing to the average web app user. The ability to assign an alias coordinate system name would be very helpful. For example, by default ESRI uses Web Mercator Aux. Sphere in it's base maps. This ends up displaying as:

"WGS_1984_Web_Mercator_Auxillary_Sphere (3857) Default"

All my users need to know is that the coordinates are Web Mercator in Lat/Long, sothe ability to display an alias that reads "Web Mercator (WGS 84)" is all they need to see. 

[MiguelGarriga2]

We could also benefit from this enhancement (we are on 10.5.1).  We have a coordinate widget configured to show both Latlong and US National Grid coordinates, but both of these options show up in the coordinate widget as: "WGS_1984_Web_Mercator_Auxiliary_Sphere (3587) Default". 

It would be extremely helpful to be able to change the description shown to the user. 

I'd rather tell users "select the USNG option" rather than "select the second 'WGS_1984_Web_Mercator_Auxiliary_Sphere (3587) Default' option.