If a user wishes to add annotations to data labels in a visualization, they can define conditions to use the annotations using the menu Chart > DATA LABELS... SHOW ANNOTATIONS FOR VALUES. Currently, the conditions allow for Above threshold Below threshold Which are missing But it should be possible to use different conditions. For example: Is equal to Is NOT equal to Is any of Is none of This menu should allow for Text options as well. Say, if a cell includes the letter "A" (in case column comparisons is being used).