Set specific team members as responsible(s) for particular(s) item(s) on a checklist inside a card

Hello, 

I would like to ask for a functionality that allows to set specific team member(s) as responsible(s) for a particular item on the checklist in a card. 

It´s specially useful to create fewer card when managing projects or sprints with a team. Asana has this function listed as “sub-task” - https://blog.asana.com/2020/11/asana-tips-subtasks/ 

Thanks in advance!