How do you add a diameter in a detail view? (pic)

Hello,

looking at the attached pic, can anyone tell me how to add a diameter dimension to a detail view (just like the diameter 4.999/4.995 shown).  I can't seem to get this even though I did it a month ago.  I did it with the baseline feature I believe under 'autodimension', but it would be even better if I could get the imported dim in there (it won't let me drag it to that view).

Thanks

SolidworksDrawings And Detailing