Inactive Blocks
                                            
It may be useful to see neighboring blocks during the design process. Conversely, there may be times when you want to hide inactive blocks to reduce visual clutter.
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                                                    Hide | Hide inactive blast design blocks in the active layer. | 
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                                                    Shadow | Shadow inactive blast design blocks in the active layer. | 
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                                                    Show | Show inactive blast design blocks in the active layer. | 
Shadowed objects are visible but cannot be selected with the standard Select tool.