Metatemplates supports site/data specific formatting features.
There are various formatting families listed below.

• Standard - It returns the existing format in which a specific data is available.
• Sample - You can use this to specify the format in which data is made available to you. The sample format will be stored in this family.
• Current
• XmlSample - You can create an xml file of the sample format required and store it here.
  You can select any specific html chosen from among any of the above family while regenerating the HTML.
  For e.g. You may need sales related pages in one kind of layout while accounting-related pages in another format. The pages can be built automatically using the appropriate family.