Mirroring choices on catalog items

To do this you don't need a lot. I've hinted at this kind of stuff before with my Lookup Select Attribute post. Here I'll spell it out.

1. Make category variable with the following bits

   1. Type: Lookup select box

   2. Include none: true

   3. Table: sys_choice

   4. Reference Qualifier: name=incident^element=category^language=en^inactive=false^ORDERBYsequence

2. Make subcategory variable with the following bits

   1. Type: Lookup select box

   2. Include none: true

   3. Table: sys_choice

   4. Reference Qualifer: javascript: 'name=incident^element=subcategory^language=en^inactive=false^dependent_value=' + current.variables.category(note the dependent value column in your query)

   5. Attributes: ref_qual_elements=category