I published a map with about 1/2 dozens of features I created in ArcGIS pro and made it available to coworkers via GIS online. One of those coworkers asked me to Enable the search for each feature. He showed me an old map created by a former employee and I am not having any luck replicating it. Here is a screenshot of what the coworker wants.
I do this via the Settings of the Web Map within Online or Portal.