Hello Renee,
Most Story Maps function with a click or a scroll, so it depends on how your remove slide advancer works. If you can configure your slide advancer to "click" or "scroll", you may be able to use it, but this will be entirely dependent on the hardware you're using and how it's configured. Unfortunately I don't have any here to test with. The best I can say is to test it with your device and see what happens. I don't believe testing with advancers is part of Development's testing methods, though I could certainly be wrong!
There is another option, if interested. Many of our Story Maps can auto-play based on a time interval. For more information on using this, I'd recommend checking out the following blog:
Using Story Map autoplay mode
Best regards,
Rachel
Esri Support Services
Rachel Guttmacher
ArcGIS Online Technology Lead
Esri Support Services
