Make scrollbar available on Tabs pane when displayed on the sidebar?

Hello -

I'm fairly new to PHPStorm so I'm not sure if this is an option somewhere (that I can't find), but is there a way to enable a scrollbar on the Tabs pane? 

I'm running into an issue when I have too many Tabs open for my IDE height; it would be great to just be able to scroll through them just like the Project Explorer on the left side of the window.