Well, i'll anwser one by one
Yes this is the question section, but dont open alot of new threads, try to get the most out of one.
Yes you can, if the hacks arent the same (like a CE spawn script, and a mass spawn edit), then one will just mess up and wont work.
Open Shadow.txt
And find
Change it to 0
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Before you ask, u will need a CRC bypass (comes with the xigncode bypass, u just have to tick "bypass CRC check")
And u'll need an updated CRC folder every new patch

this is for this patch (it goes to 2Moons/bin)