A bug made them impossible to solve the way intended. for level 8 thankfuly there is a very simple way i didn't saw when making it.For level 9 the other way is very close to the intended buged way so its like its the good way.
Thanks for your comment that made realise that it was possible for this two level :)
AH and there is only 9 level, i forget to clean the level selection screen before export .