Macro Language Reference > PIs > Block > <?blockcellrulectrl>
  
<?blockcellrulectrl>
Description
Allows you to specify a rule control stream which will apply rules to the current cell (or will specify the default for every cell if specified within the block preamble).
* 
If this command is specified as well as a <?blockcellrules>, both sets of rules will apply. The rule control stream will be applied first, i.e. it rules are outermost.
Syntax
<?blockcellrulectrl rctrl:s>
rctrl
The name of the rule control stream (must already be defined).