Expense Receipt View Pop-up Window is too small

My company recently upgraded to Gen3. I have to review a lot of expense reports and reviewing the receipts is quite painful in this new version as the "receipt view" pop-up window is just too small.  Many of the receipts that are submitted are Letter size PDFs with small type is barely visible in the tiny view window.  I know that I can click the bottom right corner of the window and drag it to make it bigger, or zoom in and move the slider bars around, but I have to do this for every receipt and it gets pretty cumbersome. 

It would be nice if I could change the default size of the receipt view window in my personal settings so that it always takes up a large portion of my screen.

Another option that would make life easier is if the receipt view window had a "maximize" button so it would resize to take up the entire width of the browser window.

Either one would make Gen3 more user-friendly for expense report approvers like myself.