Is there a way to point PowerShell to ARS instead of AD.

like...Add-QADGroupMember?

NAME
Add-QADGroupMember

SYNOPSIS
Add one or more objects to a group in Active Directory. Supported are both Active Directory Domain Services (AD DS) and Active Directory Lightweight
Directory Services (AD LDS).

SYNTAX
Add-QADGroupMember [-Identity] <IdentityParameter> [-Member] <IdentityParameter[]> [-Connection <ArsConnection>] [-ConnectionAccount <string>]
[-ConnectionPassword <SecureString>] [-Control <hashtable>] [-Credential <PSCredential>] [-Proxy] [-Service <string>] [-UseGlobalCatalog] [-Confirm]
[-WhatIf] [<CommonParameters>]

Add-QADGroupMember -proxy -identity $MyGroup -Member $MyNewMember

'-proxy' redirects the request through Active Roles

something like this if the command is running on user's workstation?

Add-QADGroupMember ARSserver1.local -proxy -identity $MyGroup -Member $MyNewMember

something like this if the command is running on user's workstation?

Add-QADGroupMember ARSserver1.local -proxy -identity $MyGroup -Member $MyNewMember