How to edit the View all link
You can edit the "View all" link in the static slide as shown in the screenshots below:
How to edit the Featured cases title
In order to edit the title that says "Featured Cases" on the Featured Cases slider, please check the instruction below:
Go to Dashboard > Slider Revolution > Featured-cases-slider > click on the Static / Global Layers
Next select the Slide ID in the drop-down menu and edit the Featured Case title:
How to edit the navigation arrows
How to edit the Featured cases slider content
Since it's a Post-related slider, please go to Slider settings > edit the settings as needed:
You can also check these articles:
https://www.themepunch.com/revslider-doc/post-based-slider/
Vamtam Beaver Themes: Guide to Revolution Slider