The default Block Name describes the name used for a Schematic block that has been transferred into PCB.
Shortcuts
Default Keys: Shift+D
Default Menu: Setup
Command: Design Settings
Locating this option
Available from:
Setup menu > Design Settings option > Defaults > Block page
Setup menu > Technology option > Design Settings > Defaults > Block page
Using the Block Defaults tab
Block Group Name Prefix
This defines the prefix added to the a group in PCB created from a Schematic Block.
For example, In Schematics, on Block B1 you have Create PCB Group checked and the Block Group Name Prefix is Block_ in PCB, the resultant PCB group name for the block group will be Block_B1.
Note, by leaving the prefix name blank, the Group name will be that of the block name used in schematics.