Some habpanel related questions (button icons & menu)

I am just starting with habpanel, but run into some questions.

  • How to remove ALL habpanel configurations, to start with an empty one ?
  • I have a custom icon file how to get a custom icon file into a button, or add a custom: icon set ?
  • I want kiosk mode, where the main dashboard shows a few widgets and 3 buttons. The 3 buttons open another dashboard with widgets and must show a button to go back to the main dashboard. What is the best approach for this, just adding a “main” button to each dashboard or some template ?