It's been talked about on the discord. There's no reason to not allow it but we're just waiting on the head mod to edit the site listing.

You can add desktop windows as an overlay in the headset. With It can be done with the Oculus dashboard but it will always be in the same spot. You can also use OVR Toolkit with any headset and that allows you to also attach the window to your hand. Only problem is how do you split?