I go to default dynamic filters, and the fields I want to use are not in the available box on the left. What do I need to change so these become available?
The Help text here http://www.quickbase.com/user-assistance/Default.html#dynamic_filters.html near the bottom explains which field types are available as Dynamic filters. In general, formula fields for example, are not eligible. You also need to ensure that the field(s) you want are set to be searchable in their field properties.