The old editor is still in install directory (at least for me, so I assume the same for everyone). It would take too long to go into the all the past history with regards to that editor. Most people used 3rd party editors anyways, Synergy (the new editor) being one of them.
Don't fret, they all basically work the same. If there is something you are having difficulty with a specifc task, just ask. You'll probably find yourself trying out and perhaps sticking with another editor down the road.
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