Adding Help Items on Dashboard home screen

I've set up Ultimate Branding and read through many posts here.
What I'm looking to do now that all the content is gone from the Dashboard of the admin, I'd like to use that space to add my own "Help" messages for my client. I do see the help in the plugin, but that's not what I'm looking for. I want to add the content like what was there - WordPress News, Welcome but replace those with custom content I write for my client on how to use their site.

Is that possible with Ultimate Branding? I added second plugin but that doesn't add it to the Dashboard splash page - only to the sidebar

Only issue after using Ultimate Branding, even though I've made a login for them as an Editor, on the dashboard, under Screen Options, they can still click the dropdown and choose to put those back on the dashboard.