I'll try to explain what goes wrong with Within's tactical mode in Multi-Monitor and how to fix it.
You need not one, but [url]two[/url] FOV keys under
Code:
[XComGame.XComTacticalInput]
Bindings=(Name="T", Command="FOV 120 | T_Key_Press | onrelease T_Key_Release", bPrimaryBinding=True) //exisiting line, just add the FOV command
Bindings=(Name="B", Command="FOV 170 | T_Key_Press | onrelease T_Key_Release", bPrimaryBinding=True) //new line to be added to the file
During missions, it goes like this:
Default FOV is Vert-
T FOV 120 is Hor+
B FOV 170 is way too high... for now. Back to T FOV.
Cut-scene triggered ! Still Hor+ for a second...
...but not for long ! T FOV has become unusable.
Switching to B FOV now restores Hor+ gameplay and cut-scenes...
...which incidentally don't break it anymore.
Somehow the first cut-scene to be triggered in a mission will drastically lower any and all custom FOV value, so you need two FOV keys: one for before the first cut-scene, the other for the rest of the mission.
To be clear, this issue only affects the Enemy Within DLC. In vanilla Enemy Unknown, you'd press T once and never have to do anything more to fix the entire mission...
In light of all this, should I cram both MM solutions in the same DR, or would a separate MGL entry for Enemy Within make more sense ?