Hello @C_ Yip 

I hope you doing great. if you want to know that you assign the delegation then click on the profile the “My Preferences”.
and you will see delegation under “Signing and sending” in left panel. refer the picture below:

and yes it will apply to all the envelops but if you wanna restrict user for delegated sign the envelop and template then is should be set on the specific envelope using “Advance option setting”

Link for more info: Restrict Delegated Signing on a Sent Envelope or Template

Hi @C_ Yip,

I hope you are doing well.

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Best regards,

Christopher | Docusign Community Moderator

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