I need to display my qty parameter in quantity bom ballon. I tryed to modify bom balloon symbol, but it doesnt work.This is the way you can create custom balloons in cre parametric and you can use multiple symbols as a custom balloon in the same drawing. 1. On the Annotate tab, in the Annotations group, click Balloon Note. This Creo Parametric tutorial shows how to rearrange BOM balloon quantities using the Split, Merge, and Redistribute commands.