Assingn Lead to individual and group also

Hello all
Good morning

Help please in below scenario

If lead assign to any user then only that user can see that lead this is working fine using role management and setting permissions “Owner” but if i want to assign lead to one group then how can this be possible so that users in that group all can see that lead. I want both the scenarios please guide.
Below is the screenshot for permissions of role “Service Operations” i hope this will help you.
https://paste.pics/6d8c86a82a937f306a75fd8d3787a5b8
Thanks in advance.

Hi,
don’t know how your groups are set up currently, but you can add multiple roles to one security group (one role defining the rule for owners, one role defining the group rule).