NX Make all Drafting Balloons the same Size.

Select and edit all Drafting Balloons at the same time to edit their size.

Within the Selection Group, change "Type Filter: Symbol", then "Detail Filtering -> Detailed Types (tab) -> Balloon", then press the "Select All" button or use "Ctrl-A". This selects and highlights all balloons.

'Over any one of the highlighted balloons (press) mouse button three ->Settings -> Balloon (left column) -> Settings (group on right side) -> Size: (change size as needed)'.