How to properly save a form so that it must be saved as a new file and Fill & Sign is activated?

I have created some forms and I want to save them so that users doesn't overwrite the forms, but are forced to save as a new file. The same time I also want the users to be able to use Fill & Sign functionality in Adobe Acrobat Reader DC.

Now I have tried to use save as reader extended PDF but that makes Adobe ask to create copy and such and I really don't get the ease that I would like to see for the users to easily fill out the form, sign and click the email button to forward it to the approver or receiver.

And no, there is not an option to buy Adobe Fill & Sign licenses.

/Morten