The Light Fixture Blocks commands allow you to customize the list of blocks available to be used for light fixtures in the project and master schedules.
See the Block Creation section for more information about creating new blocks.
See the General Customization Commands section for more information about how the Edit Project List, Edit Standards List, Copy Project List to Standards, and Copy Standards List to Project commands work.
To edit the light fixture blocks project list, go to
Ribbon: DME: Customization->Project Customization-> 
Light Fixture Blocks
Pulldown Menu: DM Electrical->Customization->Light Fixture Blocks->Edit Project List
To edit the light fixture blocks master list, go to
Ribbon: DME: Customization->Master & Standards Customization-> 
Light Fixture Blocks
Pulldown Menu: DM Electrical->Customization->Light Fixture Blocks->Edit Master List
Light Fixture Blocks Dialog Box
Sort: Press this button to sort the list of blocks alphabetically by the Description column.
Move Up: Press this button to move the selected block up in the list of blocks.
Move Down: Press this button to move the selected block down in the list of blocks.
New: Press this button to create a new block.
Delete: Press this button to delete the selected block. If the block is currently used by a record in the schedule, you will be asked if you want to replace the block in the schedule with another block.
For most light fixtures, To Scale should be checked and Can Rotate should be checked. See the Common Block Information section for more information about these values and others that can be specified for light fixture blocks.