Zorin Apperance question

Hello all!
I have one question.
Where i can save my new DE and changing settings or add to Zorin apperance?

Do you mean with DE Your new Theme? If Yes open Nautilus and go to Your Home Folder. Then go to the Nautilus Menu and set a Mark on Show Hidden Files:

Then You will find a .local Folder. Click on it and You will see a share-Folder. Click on it too. Now You are in the share Folder. Here You must create a Folder called themes and in this themes-Folder You put the Folder with Your new Theme. After this close all.

Then you open Zorin Appearance. Go to the second Menu Entry and click on the Tab right beneath ''Zorin'':