With the 'Print When' function you can print an event on the badge only if the participant actually has that event.
For example, you want to print the text 'Conference Dinner' on the badge when a participant has chosen that event.
1. First add a text in the badge as described here.
2. Right-click the textfield and click 'Print When'.
3. Copy and paste the following code in the field:
Replace R0001 with the eventcode you want to print.
4. In the Event, tick the box 'Print on Badge'