ES Version Warnings in Freedom UI Page Code

For Freedom UI pages there is typically syntax that shows as warnings in the code editor for things such as async, await, const/let, arrow functions, conditional chaining, etc. See image here for an example.

I add the following to the top of the code to turn these off these warnings: 

/* jshint esversion: 11 */

However, Creatio removes this comment anytime the page is saved in the editor and I have to re-add it constantly to the client schema. 

1. Is there anyway to preserve comments such as this when saving the page in the editor?
2. It would be fantastic for Creatio to automatically add this to Freedom UI Pages by default

Ryan