On other JIRA installations I've seen a tempo real time tracker on all issues. So when I enter the issue, there is a nice timer in the bottom right, where I can say "start tracking time on issue X".
I would like to add a similar one to my issues, but both Googling and reading documentation didn't help me.
How do I add the real time tracker to all my issues, so it's easy for developers to add and track time?