deselect-all-strings ("das")
See this command in the command table.
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Home ribbon >> Select >> Deselect >> All Strings.
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Use the quick key combination "das".
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Using the command line, enter "deselect-all-strings".
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On the Find Command screen, highlight deselect-all-strings and click Run.
 
Command Overview
Deselects all selected strings objects data.
Command steps:
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Run the command.
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All selected strings will be deselected and no longer highlighted yellow.