There's an On Demand PC Studio Fundamentals course available on Bentley Learn:
Filter by AECOsim > PC Studio and you should be able to navigate here:
Also, Bentley user Doug Fitzpatrick wrote up a nice document:
And there's always YouTube... https://www.youtube.com/watch?v=_Zs3wn-gjh8, https://www.youtube.com/watch?v=qNdbTU8G4G8, www.youtube.com/watch , etc.
PCS on PCS
Ah, nice.... I've now added the above to the PC Studio FAQ
/cfs-file/__key/communityserver-discussions-components-files/5917/Bld_5F00_US_5F00_prd_5F00_PCS_5F00_intro_5B00_2_5D00_.wmv