Hi Mees,
Welcome to the E-Learning Heroes Community!
Great question! If you set up triggers and buttons on a slide master, you'll see the button on the slide itself, but the triggers won't be visible on that slide, although they will execute when you preview or publish. If you want to make any changes to the button or the triggers on a slide-by-slide basis, you'll need to add that to the individual slide vs. setting up on a master.
You could always copy a button from one slide to the next to keep a consistent look. That will also carry over any triggers you've added, and you can modify them on each slide.
You may find this article helpful as well:
Let me know if you have other questions. I'm happy to help!
