Creates a Block Part Reference and attaches it to a block reference.
Block Part References are a special type of Part Reference that you attach to block references in order to tag them as parts.
If the block has an attribute that has the same name as a component property, Block Part References you attach to the block automatically imports the attribute's value into the component property. The AMPARTREF_BLOCK command is a shortcut to the Block option of the AMPARTREF command.
The following prompts are displayed.