customize short-cut/hot-key/keybindings with an e.g. to delete line in XCode
firstwehavetogettheterminologyright,whenwesayshort-cut,itisinterchangeablewiththeterms"keybindings",orthe"hot-keys".InMac,youcanactuallydefineyourownkeybindings.thethingstoodistocreateentriesinthefile