Google Drive files gallery, as iFrame

I'm very new to Retool, and I'm wondering is it possible to do it with Retool.
I'm a teacher in a motion design school, where students upload their homeworks to Google Disk.

Mostly its mp4 files in different folders for different lessons.

Like lesson-01, lesson-02 etc.

And I need to create an iFrame tool/app which will create a grid of preview images for these mp4 files. If student hover this image - it will paly in grid, if click image - this video will play in full screen.

How to do this in Retool? What should I dig?
Now I'm using the Awesome Table for this and google sheets, which generate a list of files.