Reversing order for custom post type only in Posts Slider (like you can in Portf

Hi
I would like to reverse the order within one (of multiple) Postsliders.
I have 3 postsliders on a page.
1. Latest posts (all categories except guest-post category)
2. Guest posts (only shows post categorised Guest posts)
3. Events (calls a custom taxonomy ‘Tribe Events Cat’)
Unfortunately the Events slider shows the Events in the same order posts ie. the one with date furthest away first and the nearest one last.
I would like to reverse order for this slider only. I know you can do it with Portfolio Grid but is there a way of doing this in Postslider? Or do you know a way of switching the order when it recognises Tribe Events Cat when called into a Postslider?