Add notification and theme menu page with custom form
I want to add a theme option page to my custom theme, as the first support point of contact for the client. I want also to display a notification on wordpress admin dashboard that can link the user to the support form. I want to use a simple textarea and an input field for the user email.
How I can do this?
I know how a bit how to add a menu page and a settings field / group, but some help qill be appreciated.