Adding of Additional Fileds below solution Category in ITSM

Hi,

We have a requirement to Adding Additional Fileds under solution category related to the entities exists in the solution category.

For every entry in solution category, exists other 4 - 5 entries related to that category, and we need to add that entries below to the solution category as like MLC categorization.

This is an additional requirement.

Please suggest is there any way for this.