CmdID / PowerShell / Cmdlets / Update
Update-RoleGroupMember
Use the Update-RoleGroupMember cmdlet to modify the members of a management role group. Exchange PowerShell reference
From the Exchange PowerShell reference 6 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the role group whose membership you want to modify.-BypassSecurityGroupManagerCheckThe BypassSecurityGroupManagerCheck switch specifies whether to allow a user who isn't an owner of the group to modify or delete the group.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-DomainControllerThe DomainController parameter specifies the domain controller that's used by this cmdlet to read data from or write data to Active Directory.-MembersThe Members parameter specifies the mailboxes or mail-enabled USGs to add as a member of the role group.-WhatIf, -wiThe WhatIf switch doesn't work in Security & Compliance PowerShell.