Custom field: issue operation links

We need a custom field that simply displays as an "Edit" link, which when pressed edits the issue concerned. Other operations could be handled similarly.

> When I'm viewing a list of issues, I often wish to update a particular
> issue (e.g. assign it to another version). In our current bug tracking
> system, there is a link "Edit" for each of the issues in the list. So I
> can simply click it, update the issue and I'm back at the list. In
> JIRA, I have to first to click on the issue, then press Edit link
> (which is, BTW is located in absolutely another place of the screen!),
> update the issue and then press "Return to search" (again is located in
> another place on the screen). That's much less convenient. I think
> adding this little "Edit" link for each issue would be a great
> improvement (and very easy to do!).