Hello Kingman,
Do you mean in length or number?
For length, (or height depending on the chart's orientation), click on the
title bar at the top to select the holder shape andthen drag one of the
green handles.
For number just drag a new Functional band shape from the stencil onto the
existing flowchart and it will be added to the set.
Hope that helps.
Best regards
John
John Goldsmith (Visio MVP)
www.visualSignals.typepad.co.uk
www.visualSignals.co.uk