Unique values symbology - remove duplicate legend items?

[gkanazawa_Mpls]

I have a web map with unique values symbology created in ArcGIS Pro containing some symbol classes which have been grouped to reduce the number of types of symbols in my map. I did this by grouping feature types and adjusting the corresponding label to include everything in the group; for instance grouping various types of bioretentions and bioswales together under one "Bioretention / Bioswale" label. The problem is that when I view the legend in my web map, it contains an identical entry for each individual feature type in that group, as shown here:

Is there a way to remove the redundant entries from my legend? It is incredibly frustrating that there is no apparent way to do this in Map Viewer.

[RussRoberts · Accepted solution]

Pro might not be writing the grouping out into the web map. I can double check this if you can share the web map with me.

Map Viewer supports grouping values and you can merge those values into a single legend item. You can check how to do it here: https://www.esri.com/arcgis-blog/products/arcgis-online/mapping/bringing-order-to-complexity-value-g...

[gkanazawa_Mpls]

Ahh, I found it - thank you Russ, Merge Values was what I was missing. I appreciate your quick response.