Re-merge incorrectly merged tickets from within the incorrectly merged ticket

Sometimes when e-mailling a ticket in it merges into the wrong ticket, or if you manually merge 2 tickets you may merge the wrong 2. Instead of going into the ticket and deleting the newly made comment it would be nice to have a button to re-merge it with the correct ticket - which 9 times out of 10 will be open and you are working on it. Also our Freshservice leverages off our Microsoft SSO - would be nice if this community website had the same option to create an account. Thanks.