+1 Also, since PowerApps can handle SVG images which involve dense encoded formulas, commenting on each part can help PowerApps developers implement them more easily.
Maybe a new function--think Excel already has an N function that does this? This approach would be perfectly consistent with the function-based paradigm of PowerApps.
And I agree that the new Editor Window would be VERY appreciated--so many powerusers have very complex formulas now, and both the Excel-like toolbar AND the Advanced property textbox no longer satisfy our needs.
This is a must have feature! I have been working with PowerApps for about 2 months and have some very long, complicated code that I can barely read a week after I wrote it. I need to be able to comment and tell the future app maintainer what I am thinking as I write this code.
Code comments are a must have when it comes to more complicated app that do a lot of routing and checks leading to complicated formulas....yes everything makes sense when you first build the app, but coming back to it after months - nothing makes sense anymore. It's somewhat a shame that other things like adding icons took priority in front of other pieces of functionalities requested here...
This is a great idea, though I think it challenges the "no code" fallicy of Powerapps, as anyone who has made a Powerapp that is more than a toy knows you pretty much need to write heaps of code to get it to work.
See the blog post here: https://powerapps.microsoft.com/en-us/blog/comment-your-powerapps-code/ for details on how to use this.