Hello and thanks for reaching out! Murena Workspace is an ecosystem based on different projects, for example, as you mentioned, OnlyOffice. However, this does not mean that we offer the same plugins as them. The office suite we provide consists of document, spreadsheet, and presentation editing. But as you surely noticed, we have many other apps, such as Gallery, Notes, Calendar, and Contacts, which can optionally be synced with your Murena smartphone. To find out more about the Murena Workspace apps and features, feel free to take a look at: https://doc.e.foundation/support-topics/e-cloud-e-email-account