"steamid" - Opens the overlay web browser to the specified user or groups profile. "chat" - Opens a chat window to the specified user, or joins the group chat. "jointrade" - Opens a window to a Steam Trading session that was started with the ISteamEconomy/StartTrade Web API. "stats" - Opens the overlay web browser to the specified user's stats. "achievements" - Opens the overlay web browser to the specified user's achievements. "friendadd" - Opens the overlay in minimal mode prompting the user to add the target user as a friend. "friendremove" - Opens the overlay in minimal mode prompting the user to remove the target friend. "friendrequestaccept" - Opens the overlay in minimal mode prompting the user to accept an incoming friend invite. "friendrequestignore" - Opens the overlay in minimal mode prompting the user to ignore an incoming friend invite.