I have implanted the topic AVADA, and I would like:

1.- That the slider, will stay fixed, that does not disappear when doing scrol
2.- To be able to modify the height of the slider, less height

I have it activated in each entry (post)

Hi there!

I suggest you to contact the author of the Avada Theme - here, for assistance, as your purchase comes with 6 months of support included.

You can also read the documentation of the theme. You can find it in your downloaded package from ThemeForest.