<?blockcolumnuse>
Description
This command specifies a subset of columns from a block to use within the block: all other columns in the block will automatically be deleted. Column numbers start at 0 and any brackets within the PI are skipped to allow compatibility with getvar 21768. The command inserts <?blockcoldel> commands to control display: with a value of 0 for those that will be displayed, and 1 for those which are to be deleted.
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<?blockcoldel> commands must not be applied by the user with <?blockcolumnuse> since they may negate those applied automatically.
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Syntax
<?blockcolumnuse +:? colset:n>
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+
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(optional) Add additional columns to an existing subset
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The "+" must not be included in the first use of <?blockcoluse>.
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colset
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A list of columns to be included in the subset: column numbers separated by commas, e.g. <?blockcoluse 0,1,2> .
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Additional Information
The primary intended use for this PI is to mimic main view block behaviour in alternate views. For example, a double page spread in the main view, using <?blockacross=1> and <?blockacrossmode=1>, will split the block over the two pages whilst avoiding the gutter.
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This is a block wide property, not a column property.
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