The Right Click Menu added to the GameCreate interface is an addition to aid the ability for users to rapidly move though multiple different pages while limiting the amount of page refreshes required by the user. Any link that has an available Right Click menu is double underlined by a fixed line, followed by a broken line. This allows users to recognise a differing state to normal underlined links.
The actions a user can perform on a Right Click menu depend entirely on what the user is clicking on, servers, hosts and games will all have their associated sub menu options that are normally available to them from their overview page.