From Josue Aguirre
At the ArcGIS Pro 3.1 release, the Defense Mapping extension includes two new elements that can be added to layouts for the Image City Map (ICM) product. The Guide To Numbered Features and Index To Streets elements are tables that can help find items in a layout by referencing a cell on a grid. The prior release of ArcGIS Pro included an enhancement to the Calculate Metrics geoprocessing tool to support Military Grid Reference System (MGRS) precision at the ICM level. The new elements reference these values.