2), 3) There is no option by default to add 2 different tables in the product description to show them for the single product and for the product grid. You can disable short description for the Quick View http://prntscr.com/mwuu7b . 2 different options to add different descriptions could be added only by additional customization. If you don’t have PHP skills you can submit the request to Codeable team.
5) You can try Additional information block option http://prntscr.com/mwxuhq and Static Blocks. Create static block with the necessary content using WPBakery page builder http://prntscr.com/mwxv88 (tabs for example) and choose this static block in the Additional information block drop-down.