How to turn off multiple desktops on Android 4 (LG Optimus L9 P760)? I would like to turn off multiple desktops that are on my Android 4 phone (LG Optimus L9 P760, if that matters). I can switch between them with touch, but I don't need that feature. And most of the time, I use it by mistake (when I want to click an icon close to screen's edge). So it's more like disadvantage for me to have multiple desktops.

Unfortunately, I cannot find any such position in top menu, settings menu etc.
Try "Nova Launcher" app from the Google play store. The "Nova Launcher" has ability to customize home screens and etc. Try this and check your results.

Nova Launcher