Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
Thinking about buying the videntMost of them are self explanatory,
Otherwise you need to RTFM,
(Not being rude, just a saying)
Some are a bit more involved, all depends on the model you are looking at to use.
If it’s one with a lot more options/menu’s,
constant use, practice, going through the menu’s will help you familiarise yourself with it.