1. On the Annotate tab, in the Annotations group, click Balloon Note. 1. Click Insert > Balloon.This Creo Parametric tutorial shows how to create custom symbols for use as BOM Balloons in a 2D production drawing. Basic tutorial how to add balloons into drawings. The main reason for using an air blast is its destructive value produced in the expansion and compression phases of weapon detonation. This Creo Parametric tutorial shows how to rearrange BOM balloon quantities using the Split, Merge, and Redistribute commands.