Freshservice Custom-Portal card creation with specific Service Catalog

Hi ,
I am trying to customize Freshservice portal where I need to achieve the below tasks

1.In default “Request a service” card, it should show all available Service Catalog

2.In new custom card it should show only selected Service Catalog

For Example, it should show “Software Installation” and “HR Management’’ catalog alone.

Could anyone guide us how to achieve these requirements?

Thanks,

Saranya