Books

GiD_Book material|condition create|set|exists
To create or know if a book of materials or conditions exists, or to set its current book.
Books are like a container to visually separe materials or conditions in submenus and different windows

• GiD_Book material|condition create <book>

To create a new book named <book> in the collection of books of materials or conditions

• GiD_Book material|condition set <book> <name>

To set as <book> as current book of a material or condition named <name>

• GiD_Book material|condition exists <book>

To check if the book <book> exists in the collection of books of materials or conditions