[JKT]

Create a blank org chart with as many levels and children as you will ever possibly need. Format each of the children at each level the way you want them to appear in the final chart (so use the Font inspector to set font sizes, shapes to fit to text, etc). Choose File>Save As a Diagram Style to save it as one of the outlining styles. When you create your outlines/org charts, pick this one as the diagram style for the outline.

Edit: Sorry, I missed the bit about not having professional. I'm not sure if this is an option that is available in standard.