I have an OBJECT and on it there is a field called RELATED USER, which is a LookUp field back to the individual USER record. I would just click the button in Classic, it would pull in the related user ID and then go into EDIT mode on the USER record so I could make quick updates and then return me to the Unique Object when done. It is possible to create an easy button or action that will take me into EDIT MODE on a user record in Lightning, from another object? In Classic it's an easy URL hack but I can't seem to figure it out in Lightning. Any ideas? 

Thanks in advance!

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Here is the button code from our Classic instance:

/{!CNET_Networks_User__c.Related_User_RecordId__c}/e?retURL={!CNET_Networks_User__c.Id}