Good Day, please how do customize my Dashboard – making my clients see what I only want them to see. Also is there a way I can integrate a customized video tutorial in my clients dashboard on how to manage their CMS? Thanks boss
There are several plugins that allow you to change the look of the WordPress backend. I typically don't recommend them because I think it will end up being a cat & mouse game when WordPress makes changes it will break.
As far as cleaning up the WordPress backend, you can use the Screen Options in the top right to not show some of the widgets.
To add videos, there is a free plugin named Easy Support Videos. It works but I personally wouldn't use it.