Within the Settings tab you can change the user's password.

https://cdn.elev.io/file/uploads/Y8HRug0UP1_nc7keKhPlUMb6EWaLyF_WbEgwSgzwTko/t8ZDc27MaABqYwvw0v7x63eHUN9XBtge-Mf_i6ZZva0/Settings2-4k0.PNG

This tab will be expanded in the future.