So I selected several features from a larger layer and used "Create Layer from Selected Features" so that they would show up distinctly on my map. Now I have to add some features to the one based on the original selection set. As it is now, I have to reselect all the previous features from the big layer, plus the new ones, and create another selection-set layer (with all the symbolizing and labeling that entails). How about this: If an MXD has a layer based on a selection set from a larger layer, and the larger layer has other features selected, add functionality so that you can right-click on the selection-set layer and append the selected features from the larger layer, so you don't have to make and re-symbolize a whole new layer?
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