I would go one better than that Pol and recommend users implement custom changes as a mod. It is then not necessary to back it up before installing new WOFF UE updates, and much easier to swap in and out as needed.
Anyone needing a basic mod for this purpose can PM me and I will provide it, but the setting options will have to be made by the user.
UPDATE: I have created such a mod and sent it of to Sandbagger for posting on the mods page.
Thanks very much for this mod, Robert. It's just what I needed.
Case: Cooler Master Storm Trooper Pwr Sup: OCZ, GameXStream,1000-Watt MB: Asus Maximus VI Extreme Mem: Corsair Vengeance (2x 8GB), PC3-12800, DDR3-1600MHz, Unbuffered CPU: Intel i7-4770K, OC to 4.427Ghz CPU Cooler: Cooler Master Seidon 240M Liquid CPU Cooler Vid Card: ASUS GTX 980Ti STRIX 6GB OS and Games on separate: Samsung 840 Series 250GB SSD Monitor: Primary ASUS PG27AQ 4k; Secondary Samsung SyncMaster BX2450L Periphs: MS Sidewinder FFB2 Pro, TrackIR 4