There are tons of youtubes on how to change out motor mounts for other cars, and you can apply those principles to the Versa. Replacing without pulling the engine is generally possible, but you will need jackstands, and you will need to jack up the engine to take the weight and tension off the mounts once you loosen the bolts. If you haven't already got them, there are manuals available in this forum for most Nissans, and most MY's. I've supplied a link to the "Engine Mechanical" section for your engine. The location of the mounts is detailed on page 191.
http://www.nicoclub.com/FSM/Versa/2010/EM.pdf
Be careful where you place that jack, and use wooden blocks at the jack point to prevent damage to the engine.
Here are links to Rockauto's offerings for the specific mounts you may need:
https://www.rockauto.com/en/catalog/nis ... mount,5552
You can find the transmission mounts there as well for both manual and automatic (I'm assuming conventional and CVT).
Good luck! Oh, and if you do the job, document it for the forum!