[otrs] Dynamic Field

Hello, I am using OTRS 4, i want to create Dynamic Field Eg : Category, Sub-Category, Sub-Sub Category, Sub-Sub Category If Category is ABC than Sub-Category is XYZ etc. Kindly help Best Regards Milind Tailor Information Technology MOL-IPS India, Mumbai Centre Work : + 91 22 42478445 Website : http://www.molpower.com