Try "Matrox PowerDesk", this application should achieve what you are looking for, much like AMD's Hydragrid.
Alternatively use windows key + p to toggle between spanned, extended and/or single display modes, ie:- 5760x1080, 3x1920x1080, 1920x1080.
_________________ | Gigabyte X79S-UP5-WiFi Skt2011 | i7 4820k @4.4GHz Watercooled (Ivy Bridge-E) | Corsair Vengence 32GB @2133MHz 11-11-11-27 2T Quad-Channel (8x4GB) | AMD R9-Fury-X 4GB @1140/505MHz + EKWB Watercooled | 256GB Crucial MX200 SSD | 8x 1TB Samsung F3 SATA-II | Corsair 850W TX PSU | 3x Dell S2209W 22"wide TFT's (5760x1080res) | Logitech Z-5400 5.1ch speakers | Win7 Ultimate x64 |
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