www.cryer.co.uk  
Brian Cryer's Web Resources

Many Home Pages ...
What is the difference between the 'Open' and the 'Test' buttons?

The 'Test' button and the 'Open' button both open windows on each of the URLs listed. The behaviour of these two buttons is identical.

Why then are there two buttons and not just a single button?

This is really for convenience. It has been found that when using Many Homes regularly it is convenient to have the 'Open' button next to the list of page groups. This makes it easier to select a group and then open it (because the two controls are next to each other). Keeping the button 'Test' purely emphasises that the user is testing the current set-up. Strictly this button could be removed.