Nullify Block

Make Block Invisible and Null

Use the Nullify Block option to make a block on the current section invisible and class it as 'null'. This option is most useful in situations where an in situ block does not need to be moved, and hence should be ignored.

This option can also be accessed by selecting the Nullify Block button from the Dragline - Move Blocks toolbar.

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Instructions

On the Dragline menu, point to Move Blocks, and then click Nullify Block.

Nominate a block on the current section. The nominated block will be shadowed and classed as a 'Null' block.

If a Dragline specifications file (.rsp) was not opened prior to selecting this option, then the Open Dragline Specification panel displays first.

Open Dragline Specification panel

Spec file name

Enter, or select from the drop-down list, the <spec_file_id> part of the dragline specifications file name. The maximum size is 6 alphanumeric characters. Selecting a name from the drop-down list will open an existing specifications file. Entering a new name will create a new specifications file.

Click OK.

If you have chosen to use the Prompt to move another block after completing a block move preference (which is specified under the Dragline section of the Preferences interface) then you will be prompted as to whether or not you want to repeat the chosen procedure on another block. If you are not using this preference, then you will be returned to the "Select menu option" prompt.