Help with play list

Hope someone respond to this question. Using current iTunes and iPhone xx. I created a playlist in iTunes in Windows 10. Problems.
1 When I add songs in my play list from a artist the list add all the songs beside the one I selected. TThe only way I can add specific songs if I go to album instead of artists.
2 When I sync my play list to my iPhone, it creates a copy ofthe same list in iTunes and my iPhone. I have to delete the copy.
3 Can I put the list in alphabetical order?
Please help if you can.