@dilsiam Teh iFixit team really has not a lot of time to create specific requests. There are just to many device and to little time for this. This is where normal users like you and I come in. Most of the guides on here are made by the community. We create those and post them on here. Let's say you start working on your camera, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That way the next person that runs into issues with their camera, would have the help they needed based on your guide. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.
As for your repair, we really would need to see how the dial broke off. Post some well-focused images of this with your Question. That way we can see what you see. [guide|21499] Personally I am not a fan of "super glue" etc. If anything, I would try and use some epoxy resin. I just have more luck using that stuff instead of adhesives. Looks like Canon even considers the Mode Dial a Non Serviceable part [document|39565]