Multiple Stacks on Mobile

[Ray]

As far as I know, it's not possible to display two stacks simultaneously 
on either Android or iOS.  Does anybody have any suggestions for a work 
around to this?

In my case I have a stack with multiple cards which transition with 
visual effects as users go from card to card.  I'd like to keep this 
look while at the same time displaying in front of it another, fixed, 
video game style 'heads-up' stack on screen using the window mask property.

Thanks in advance for any ideas!