Preserve Document Outline state

First of all, love your product.
My case is that I use it to read a PDF book. The book has sections, and Kami does an excellent job of identifying the sections in the Outline pane. However, the Outline Pane is ‘collapsed all’, every time I open it. The book has a lot of sections, so to get to the one I need, I need to close a lot of them in the Outline view. But when I refresh, they’re all collapsed again, and I need to go through the same process of closing.
Would be great if Kami could preserve the state of the Outline pane tree after refresh.
Thanks again,