Multipurpose Kanban Board (CRM, ERP, CMS)

I made a board that is designed to connect additional contexts of various systems like erp, cms or crm. The user simply switches the toggle and immediately sees the workflow with tasks from another context. I also tried to implement a new additional calendar item as a bottom panel. Convenient filtering, search and display of other users using this board. And of course very good Usability.

Please comment what you think about.