Allow an application to update the previous window state of CoverflowAltTab

[pradhanpk]

When using emacs with two frames, i.e., the modern-gui equivalent of two windows, I can switch from one frame to another through an emacs shortcut(C-x 5 o). However, this does not update CoverFlowAltTab's history of which the previous window was. For example, say I have two emacs frames E1 and E2, and two other application windows, A and B. Say I am currently on E1 and got here by alt-tabbing from A. Now, pressing C-x 5 o takes me to E2. Alt-tab now takes me to A. I would like it to take me to E1. Is there a way of injecting this information into CoverflowAltTab so that it knows updates its previous window state to E1?