How to backup games? (Steam Beta Client)

[Dewa]

As the title says, i can't find the option to make a backup of game(s)
Also, for some reason whenever i access a backup it will automatically install every game in that backup folder, even if i already have some of the games in the backup installed, with no option to select what to install and where

[Jurka]

?

[wuddih]

beta forum
https://steamcommunity.com/groups/SteamClientBeta/discussions