Is there a way in InDesign to Group headings or bodies of text together. I have a classified section in a magazine and there are many headings and text ads under each heading. Sometimes there are 200 ads and other times there are 250 ads, etc... I want to be able to adjust text size and spacing in groups, ie. If I change a Heading to 12pt then all headings change to 12pt. If I change the text spacing to 1.5% then all text spacing changes etc... so the text will expand and contract to fill the pages accordingly. I currently do this in an old program called Ventura but I no longer want to use this.