One suggestion, create a text note and select multiple entities while holding the control key down, this will create multiple leaders to the entities selected. Edit the note text with the dimension symbol desired, example &D75. ProE radius and diameter shown or created dimensions can only be attached to the the feature entity they reference. The idea is wrapped up in the associative nature of the feature and dimension. The recommend method for notating repeated dimensions is to use "X" (2X, 3X, ...). With ProE ideally the features would be a pattern and the numeral in the "X" would be the pattern symbol (&P1) to maintain the associativity. Regards-