I had to wait for an answer from Kleon http://kmeleonbrowser.org/forum/read.php?1,87082 in order to anwser you.
You can use ALT + S to open Sessions. Continue to hold down the ALT key and navigate to Save, Undo, Options, and Load by pressing the S, U, O, or L key. If you do Load, you can go further and select which session to load.
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