How to script an install for the Process and Instrumentation Workgroup?

The command line would be (PIWLoc and PIWMain are required):

msiexec.exe /qn /quiet /norestart INSTPWUTILS=1 ADDLOCAL=PIWLoc,PIWMain,DataManager /i "PathToMSI\PIW.msi"

Here is the full list of features, you can modify this list by removing features you don’t want:
ADDLOCAL=PIWLoc,ProjectWiseUtil,PIWMain,DocManager,TemplateGen,DataManager,Datasheets,Hookups,Instrumentation,Vision,CoreFWProjects,ProjectImperial,SamplePrgMetric,ProjectMixedMetric,FWSampleCfgs,FWSampleCfgImperial,FWSampleCfgMetric,FWSampleCfgMixedMetric

This is basically the same as ADDLOCAL=ALL