Added behind-the scenes metrics for Network Options, they do not appear on any options lists.

stepmania/Themes/default/metrics.ini

@@ -3071,6 +3071,9 @@ Fallback=ScreenOperatorMenu
 [ScreenTestLights]
 Fallback=ScreenOperatorMenu
 
+[ScreenNetworkOptions]
+Fallback=ScreenOperatorMenu
+
 [ScreenBookkeeping]
 Fallback=ScreenOperatorMenu
 
@@ -4284,6 +4287,10 @@ Turn,4=mod,right;name,Right
 Turn,5=mod,shuffle;name,Shuffle
 Turn,6=mod,supershuffle;name,SuperShuffle
 
+Network Options=1,together
+Network OptionsDefault=
+Network Options,1=screen,ScreenNetworkOptions;name,NetworkOptions
+
 Insert=8
 InsertDefault=mod,no little,no wide,no big,no quick,no skippy,no echo,no stomp
 Insert,1=name,Off