Hi Arthur,
I remember you mentioned about this before, i have already written down your request which will be totally considered.
I am going to repeat myself and say; it will be added in the next version.
We would love to improve our modules based on requests/feedbacks, indeed we are doing it. There are some other improvement as well that we are discussing to implement to Modern Slider module. (one of them is adding a completely new additional theme: theme3)
But I can't give you any ETA about when the new update is coming with those improvements.
Regards,
Support & Development