I have been tasked with adding metadata to many of our shapefiles. In Pro when I go t set the metadata style, the dropdown is grayed out and the only option is FGDC CSDGM Metadata. We need to add metadata in either the ISO 19139 Metadata Implementation Specification or the ISO 19139 Metadata Implementation Specification GML3.2 style, See below.
How can I activate the dropdown? I can enter the information in the ISO style in Arcmap but not Pro.