For instance, in Module1:
pref1 = Prefs.Integer(...);
pref2 = Prefs.Double(...);
In Module2:
pref1_ref = Prefs.Reference('Module1', 'pref1');
pref2_ref = Prefs.Reference('Module1', 'pref2');
Where the prefs and UI in Module2 behave and update exactly as the prefs and UI in Module1