I can explain it to you only I think youtube tutorials for 360 minecraft videos can explain you much better than I can because I am not really good at English and have translated this post, but I want to try. replaymod has a function for rendering in 360 with the correct settings and resolution you can render the video I would recommend to render with high settings because before you can place it on youtube you have to add special meta data where a lot of quality would be lost. It is best to grab a resolution of 4k. this is also recommended by the site of replaymod itself, so expect long render times. When the rendering is finally finished, you can choose to add music that you have to add in your editor. Unfortunately I couldn't render in 4k through my editor so lowered it. Hope I have been able to explain it a bit clearly.