Changed the number 120 to 300 in this file:
In both places in these lines:
<V n="basic_content" t="flexible_length">
.. and the sim turned to a fish for 5 sim hours instead of just 2.
There are a couple of other files if you search for GetTransformedIntoObject, so you might want to try them all. I don't play with spellcasters that much, and don't really want to test them all. It was fun though, the fish thing made me laugh out loud.
I think you might be posting in the wrong section; Modding Discussion is perhaps better.