Controls how groups, blocks, and symbols are named. See Auto-Naming of Groups, Blocks, Symbols
Prompt for name: You will receive a prompt each time a new item is created.
Generate names: Names will be automatically assigned.
Prefix: If names are automatically generated, you can enter a string that appears before the item name. The "@" character is a placeholder for the automatic number.
Insert blocks when creating: Each block will be inserted into the drawing once it is created.
Prompt for library location: If not checked, all saved symbols will be stored in the default folder. See Loading Symbol Folders into the Library
Note: If you turn off both the Prompt for name and Generate names options, names will not be assigned to groups. Names will be assigned to blocks and symbols, however.