Unfortunately, we don’t have a release schedule for specific features. However, if you are interested in expediting development, you can write to sales@onlyoffice.com to discuss available options.
I’d also like to mention the option of getting Dedicated Support if you need professional assistance with the product.
In theory, it is possible to decrypt it manually, but one would need to utilize all the written code to replicate it.
It’s not entirely clear why you need to decrypt the editor.bin file…