How to set high resolution on external monitor? I have Samsung Galaxy S3. I connect my phone to 29 inch monitor using HML + HDMI wires. Also I connect it to Apple bluetooth keyboard and magic mouse. I get a very nice experience of Desktop. However S3 has maximum resolution of 1280x720 which does not give a nice look on big monitors.

I have following questions:  


Can I extend my monitor screen from mobile screen so I can drag and drop apps from one to another?
Can I change resolution of apps running on my monitor to higher than 1280x720.


Thanks

Note: External monitor does not have touch functionality.
Having a different external display was one of the new features with Jelly Bean 4.2  You will need a siutable update for your S3 to stand a chance.  What level of support you will get then is still in doubt depending upon the real hardware capabilities and what support Samsung put in.