Playersite Template Default

[Pixel-47]

Hello. So I'm thinking and wondering if I can change or do something to set the resolution of this window to the one I'm currently streaming. For example, 1280x720 or 1536x864 or 1600x900.
What I mean is that there is no problem with it when I broadcast in 1080p and I take the full screen because I see the source image not prescaled, but on the other hand, the full screen has a lower resolution, but not so much, and I would like to have the original image in at least one option resolution of the video stream.
This is the only way I prefer to assess the quality of the stream.