You know when the installer searches for your copy of P4/5 and says "Files will be installed in the following directory"? Just hit the browse button and get everything to install to a Temp folder in your My Documents instead. All the paths will be intact so you can rename to your own conventions and then just bodily move the Runtime folder into P4/P5. That's what I do... HTH

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire