Hosted Video (.mp4) into Columns within a row

I’m trying to input a hosted video (.mp4) that I’ve already uploaded to my media library, into each of the 3 columns. (image one-3 columns in row)

The issue I’m having is that when I go to edit the column in the COLUMN SETTINGS, I’m not given the option to select a hosted video as the background type. (image two-2 column setting) If I embed video, it’s not recognizing my .mp4 hosted video. Although, it will give me the option to use a youtube/vimeo link, which isn’t what I want to do.

However, If I go into ROW SETTING (image three-Row Settings), under Background Type/Hosted video, I can use my hosted .mp4 file as a background for the row, but not the various columns within that row.

Please assist, thanks.