Where can i read all about custom filed parameters?

[borro]

Hello.

I'm creating new custom filed. There are a lot of parameters during filling custom field form. Where can I read about their meaning and profit (cart atribute, layout position, Admin only,...)?

Thank you

[jenkinhill]

http://dev.virtuemart.net/projects/virtuemart/wiki/Product_custom_fields_without_stock_control
http://dev.virtuemart.net/projects/virtuemart/wiki/Product_custom_fields_with_stock_control
http://dev.virtuemart.net/projects/virtuemart/wiki/Product_custom_fields_Plugin_Customer_Text_Input
http://docs.virtuemart.net/manual/17-products-menu/34-custom