In the past I have just been duplicating the one mono channel from my Rode VideoMic Pro Plus by right clicking that channel and going to "Channels" > "Both" and that duplicates that mono channel to stereo in one track. That is good, it does what I need but I have came across some other ideas today including duplicating the tracks and panning one to the left and one to the right and another idea that involves that and also inverting the phase of one channel by going to right click > "Switches" > "Invert Phase", which sounds amazing somehow (and kind of weird), and I'm not sure if that phase inversion is doing something bad or something good. There was also another suggestion about the inverting phase option by delaying one channel by about 10ms so they don't cancel out in mono.
Any tips on what I should be doing, if not what I have been doing by just right click > "channels" > "Both" on my source track?
Another question, would it be worth it to try and pan the channels to try to make stereo, or even a 5.1 mix that I have been experimenting with? Where would I go to learn about that?