I can replace a pattern with line break.
Let's say I have
"AAA" "BBB" "CCC" "ABC"I enter CTL+F to open Find, then switch to Replace.
In Find What, I enter " " and Replace With \n, then I need to check Search Mode > Extended (\n, \r ...). Then hit "Replace All" button.
"AAAI just delete two quotes simply.
Then in the menu > TextFX > Text FX Tools > Sort Line ...
Notepad++ is getting better and better,