I'm working with our civil engineers on a traffic sign inventory. Signs are group by certain MUTCD codes, and the layer named appropriately. I would like the Pop-up to show the MUTCD code, and not the layer name.
Example: Codes W10-1, W1-6, W1-8, W1-2R are grouped together and the layer named "Warning - Other Signs". Instead of the MUTCD Code (eg W10-1) showing in the pop-up, it shows the layer name instead.
How do I correct this?