How can I edit the meta keywords and description of my website using the Theme Wizard?
Unfortunately there is no way to add the Meta information such as keywords and description using the Theme Wizard, however the feature is supported in the "Website Details" area of the other Layout Wizard. You can change to the Layout Wizard from the "start building your website" area of your Wizard manager.
Please note, if switching from the Theme Wizard to the Layout Wizard, any of the data in the "Content Block 3" of your Theme Wizard pages will not be carried over. You would need to save that information into a file beforehand, and add it again afterward.
If you would prefer to have full control of the HTML code of your pages, you will need to stop using the Wizard and edit your pages using the File Manager instead.