It would be great if you could set the symbology for the features that are currently selected. This would allow a group of features to be classified based on something other than data without selecting/exporting a layer and would be particularly useful for larger datasets. I am trying right now to use it to mark census blocks that I have QC'ed. The only method that I can think of currently is to set the symbology layer for unique values and manually change the symbology as I finish each block. It helps in symbolozing features as a group that would not normally be grouped together, ie. selecting which areas work crews should be focusing on or houses for sale in an area, without creating a new field or layer.
We would find this very useful. For example, sometimes we want to highlight points in story maps. This is not necessarily based on attributes, but sometimes just based on the narrative, so it does not make sense to add extra fields to record this in the data set.
Actually this has been built into ArcMAP since I started using it with version 9.3
Open the Layer Properties and click on the Selection Tab and click on the with this symbol. Then change the symbol to what you want. Whenever you select a feature in that feature class it will change. I used this technique for my first GIS presentation back in 2002
I believe this is an idea for ArcGIS Online?
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