I need to display my qty parameter in quantity bom ballon. I tryed to modify bom balloon symbol, but it doesnt work.1. On the Annotate tab, in the Annotations group, click Balloon Note. 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. This Creo Parametric tutorial shows how to rearrange BOM balloon quantities using the Split, Merge, and Redistribute commands. Laboratory publications are sent to hundreds of libraries in the United States and elsewhere.