I looked around a bit. There kinda is a way of doing it.
Go to https://www.warlight.net/Test/LocalStorage
click 'List Keys' AVOID CLEAR. THAT DELETES YOUR SAVES
find something like
then UNDER this ther is things like,
that would be the official SP levers. Lv 50 is the 'new' level 1.
Under them again, I see levels I have attempted.
Then copy 839758 into the SP level URL. https://www.warlight.net/SinglePlayer?Level=839758
//opens it right awayhttps://www.warlight.net/SinglePlayer/Level?ID=839758
//use this one to see it first
Edited 3/12/2017 07:03:20