Currently, there is no plan to support popup dialog windows in the Aveksa application. The content inside of the popups have been designed to fit such that there is no need to scroll horizontally to reveal content outside the boundary of the window. In Internet Explorer, you can simulate "maximizing" the popup window by adjusting the settings in the browser. Go to Tools > Internet Options. In the "General" tab, look for the "Settings" button under the "Tabs" section. On the subsequent window, look for the section called "When a pop-up is encountered" and choose the "Always open pop-ups in a new tab." This will cause popup dialogs to be opened in a new tab, and the contents of the popup will be rendered in the current size of the browser window.
If you encounter content that does not fit in a popup window, please log a case with Aveksa Support and attach a screenshot of the popup as well as the UI navigational steps to arrive at that popup.