I was wondering if there was a way that I could remap the Ctrl-Alt-Esc shortcut to Process Lasso.
Not at this time. However, you can create a different shortcut key for Process Lasso. Simply go to its Start Menu shortcut (Process Lasso), then right click it. There is an option for the Shortcut Key. Put whatever key combination you want there. Then you can launch Process Lasso with that shortcut key. I will work on a better way to do this, so it need not be done manually, and perhaps replace the Ctrl-Alt-Esc combination as well.