In the labels tab open the Expression tab. Assuming your field doesn't include the text "Size", you'll need to add that as well. The following should be entered into the expression box. [fiberassignments] & " " & "Size: " & [enc_size] If you have Maplex label engine you can add special characters within parentheses to force stacking of labels. You can set which characters to force stacking and set visibility of those characters and stacking behavior under the Fitting Strategy tab under the Placement Properties. Good luck.
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