Macro Language Reference > PIs > Block > <?blockrulectrl>
  
<?blockrulectrl>
Description
Specifies a rule control stream that should be implemented for a block.
Syntax
<?blockrulectrl ctrl strm:s?>
ctrl strm
The name of the rule control stream (must already be defined).
Additional information
If specified in addition to a <?blockrules>, both sets of rules will be applied. The rule defined via the control stream will be drawn first so it appears on the outside.
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