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.
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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

