PLEASE fix the ablity to fix envelopes

I have spent so much wasted time trying to fix envelopes while in preparing signing. It is a huge drawback to this platform. 

OnceI have an envelope I need to be able to delete a document or add a document without losing all my work!!

If I have an envelope with 15 documents that I've placed signatures and initials on and realize the 15th document has an error, I can't fix it. Why can't I delete the 15th document, fix it in forms and then add it back in without losing ALL MY WORK AND having to create a whole new envelope? Its really a problem and significantly affects my productivity and the productivity of my team. This happens OFTEN. I will ask my admin to prepare an envelope and place signature/initial blocks to expedite the process. Then the client changes their mind about one detail of the offer or terms and I have to start ALL OVER. Often this happens outside of hours, my admin is now off and I am trying to recreate the wheel at 11pm on a Sunday night. 

Please consider fixing this. Its a basic functionality that all agent will appreciate and I've always had on Docusign. 

Thank you.