Ask and you shall receive. Disclaimer: the scripting used here is pretty low-level (read: dangerous), so be careful if experimenting with these techniques.
What you’re going to want to do is to set your FactoryPMI project to start non-maximized and not in full screen mode. You set these settings in the FactoryPMI Gateway Configuration section.
Then you’re going to move/manipulate the actual FactoryPMI Client window using the startup script. The only downfall to this is that while the user is logging in, the application will start up on monitor zero, as the startup script runs after a successful login.
This script shows how to move, resize, and alter the FactoryPMI Client window to remove the Windows border decorations (title bar, resize borders, etc).
from com.inductiveautomation.factorypmi.application import FPMIApp
from javax.swing import SwingUtilities
window = SwingUtilities.windowForComponent(FPMIApp.getInstance())
Move the window to 400, 250 (pixels from the upper left corner of monitor zero)
Set the window size to 1024x768
Remove window decorations
Hope this helps,