So you need to opne group policy on a remote computer directly, but you are to laisy to go there or other computer is on the other part of the country?

Simply go to Start Run and type: gpedit.msc /gpcomputer: remote-computer

After you have loaded third party adm file, configured policy or just changed some windows components settings you need to force update of the remote policy.

Simple PowerShell command will do the trick: Invoke-Command -ComputerName FQDN-of-computer {gpupdate /force}