Add ability to limit the length of the tabs for the source panel

When you open a file in the source panel, Premiere displays "Source:" + the full filename in the tab. When you have files with long names, it crowds the other tabs out and you have to click the >> button to get the option to select other windows, like Effect Controls. Its particulary a pain when working on a single laptop monitor with limited space. An option/feature to limit the space the source panel tab can take up would be amazing. Thanks!