i am developing a new section to fetch and show site mail box in an umbraco section by using IMAP and SMTP protocols.

every thing works fine but there are some trouble i cant find any soultion for them:

1. where can i store my section settings? i must store mail server address , port number , etc in somewhere, but what is standard way to do that?

2. how can i add a configurable user permission for my mailbox 'settings' node, like as content nodes? i want just developer can set 'settings' item.

3. i want to add a dashbord tab for my section, but nothing will display?

  <section>
    <areas>
      <area>mMailBox</area>
    </areas>
    <tab caption="Gasdas">
      <control addPanel="true" panelCaption="sdad">
        /umbraco/dashboard/mediadashboardintro.ascx
      </control>
    </tab>
  </section>

by the way when i change tag to 'content' or 'developer' a tab will adds to that sections, but nothing in my section.