To install and configure EA to use the floating license, starting from https://delivery.critical.pt/TechAreas/net/SitePages/ToolsPage.aspx select Enterprise Architect (https://delivery.critical.pt/TechAreas/net/SitePages/ToolEnterpriseArchitect.aspx). Look at the PDF with the installation instructions (INTERNAL).
You can also download a free trial from the Sparx Systems WWW site.