If you need to iterate, just use a variable in "The_name_you_want".
Loop VariableValue from 0 to 10
.. Layoutname = "Level" & VariableValue
It will make sure that the current layout name is "Level0" and then "Level1", etc...
But once again, as a creator, you know how many and what the name of the layouts are, anyway, since you made them at edittime.
I really don't see the problem here.