While fairly straightforward in application, it involves some noteworthy quirks and tricks. To pass a parameter value to a nested template, place a parameter tag as the value of one of the nested template’s parameters. Some templates contain category definitions in their transcluded code, i.e. they are intended to place the target pages in particular categories. Featured Template Food Truck by TW This month Template Box is our exclusive Food Truck theme. For issues involving the substitution of templates (for example, how to control whether subtemplates are substituted as well when the parent template is substituted), see Help:Substitution.