All this data about you should be entered under Settings > My company. You will also find there an 'Other details' field where you can enter all the other information that you wish to display in your documents.
You can also put this information in the footer of your documents. To know how to add a footer to your documents, see this article: https://help.lsp.expert/en/articles/1863968-how-can-i-add-a-footer-in-the-documents-i-create-with-lsp-expert