I think this would be a great mod for people who want to record their Minecraft as if it's a screen recorder, but their computer can't handle it. So, I think the mod should record your mouse, any guis, your hotbar, scoreboard, xp bar, boss bar, the play hand, etc. Now I know the mod will only be able to record that for the player who is recording, but I think there should also be a way to import multiple of these gui recordings into one recording so you can then have the camera switch between players.
What do you guys think? I think this could be the best recording software/mod for Minecraft if this was added.