On the issue screen there is an epic Link I want to edit the name of the epic Link not the epic name, just the epic Link.
Is this possible, if so please how do I go about doing it?
Epic link just fetches the epic name of the connected epic. Thus, if you have the Epic link field on the "edit screen" of the issue then you can connect the story to another epic and hence update the epic link to point to the new epic.
But, you can't technically edit the epic link as it's always the epic name of the connected epic.
I got it!
1) You have to go to your backlog screen
2) Click on the EPICS tab (it's shown in vertical mode, you have to turn your head to see it lol)
3) Find your epic & click on it
4) Edit the name straight on that screen
5) It will update only the Link/Epic Name field - the Summary remains the same.