[How to create a sandbox on my island?]

So how can i create a sandbox on my island?

First i have subdivided a parcel on my land, using the buld -> land tool.

Where can i set the setting for that specific parcel that everybody can build?

Do i need scripts for the cleaning of that parcel?

[How can i remove the "www adress bar" always generated when putting a www adress to object?]

The idea is to use cloud data reporsitories i.e Google Docs to show documents and other material. The problem is now that some students can change the internet page and "ruin" the enviroment.

So please all wise and generous contributors. How can i do this? Is there a script for this?

[How can i change islands maturity rating from moderate to general?]

So i have done some reading on age limitations on http://secondlife.com/corporate/tos.php and http://community.secondlife.com/t5/English-Knowledge-Base/Maturity-ratings/ta-p/700119. Now i want to make my island a "General" island instead of Moderate. If i undestood the text correctly, the General woud allow >16 ages to access the island. And 13>x>16 woud need a private estate. The island intented to change is called "Lukiosaari" and is intented to be used in educational use according to all rules that "General" age limitation stands for.

So how can i change my island from moderate to general?