I am having trouble figuring out how to use the text objects with the vimtex plugin. The mappings with leaders and the commands in normal and insert mode are fine. But to get environments, sections, etc. there are some bindings which i cannot figure out how to use. Specifically, the ones like
Mostly I think it is because I have no idea what modes x and o could be, (I assume n is normal, i insert) - I have not been able to find any explanatation of this elsewhere. I assume its something obvious that is just escaping me.