Full screen video in Guided Journey

Summary:

In search of a way to enlarge the size of an embedded video within a Guided Journey.

Content (required):

We have embedded videos into Guided Journeys with the source video being housed in Microsoft Stream. The videos play nicely within the pop-up box in the Guided Journey. However, the option to make them full-screen is grayed out. Some of our video content is a bit small to see within the existing window. Is there a way to enable full-screen or allow the user to enlarge the video within the pop-up window? Dragging the bottom corner of the pop-up makes the window larger but doesn't change the size of the video. Users can click the View in Microsoft Stream button