Speaking of BOM balloons:
While in drawing mode, select detail. Right click and select "Create BOM Balloon". If detail's BOM is already shown it will ask you to "Enter amount or to Quit". You type in amount and then message tells you to "select a highlighted balloon to get the quantityt from" and if balloons are not within visible area when you zoom out screen refreshes and highlight of balloons is gone, so you have no clue which balloon to select.
Amazing! It is never boring with Creo.