If I root my device, can I get back the "soft" navigation keys?

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http://forums.androidcentral.com – I hold my Note 10.1 (2014) in portrait mode about 99.9% of the time, and I find myself accidentally hitting the "menu" or "back" keys way too often, since they tend to sit right where my left hand would be gripping the tablet. I was wondering if I could root my device and disable the hardware keys, and instead just have the "soft" navigation keys that are used on the previous version of the Note 10.1? If I root, will I lose all of the nifty S-Pen features? (HowTos)