How do I add a downloadable MP4 video to purchase from my squarespace store?

Hi I have a recorded masterclass that I want to add to my webiste for people to purchase and download but can't seem to do it? It's an MP4 file...

Squarespace limits any download to 300MB, making it pretty impossible to sell longer video downloads. You could get a Digital Products plan to sell access to the video on your website, but offering a download of the video that way is not possible at this time.