@huntd1 ...
Thanks for the video you linked to...very helpful! My initial thought was to use this icon on your RCE (Rich Content Editor) ... which is just a few icons over from your Studio icon. (My set of icons looks slightly different than yours, FYI.)

However, when I tried to use this tool in the RCE, there was no ability to do a screen capture like you had shown in your video recording.
While this is technically available in the SpeedGrader, I believe it would still constitute as a separate idea submission...because you are asking for new functionality in other areas of Canvas that already exist elsewhere. When you create a new idea, it should search for similar, existing ideas. If there was a similar idea that was already submitted, you wouldn't need to submit it again (to avoid duplication), but you could follow the idea so that you'd be able to vote in the future. The blog link (last link in my initial response to you) describes the changes that are currently going on behind-the-scenes with the whole idea process, so you'll want to take a look at that posting from Instructure.
I hope this helps to explain how things currently work (both in Canvas and with the idea process). Sing out if you have questions...thanks!