Create your own topics in the settings, alongside the standard topics that Stager always offers. You create topics for subjects that capture different aspects of any production. You can see these in the Advance form, in the Program item, the Itinerary and the Schedule. For each section, you choose which topic you can use.
Add two of your own topics via Settings - Planning - Topics. First check 'Enabled' on this screen and then enter the name of the topic. You also choose an icon.