How to transfer a player to gm 3?

What is gm 3? You need to provide more information in order to receive assistance. There is a call function block for procedures... ?

Do you mean how to run the command, "/gamemode 3"? If so, that's not actually a valid command anymore in Minecraft. As far as I can tell survival mode was changed from id 3 to 0 in 1.3.1(!), and you actually have to type out the full name now. Anyways, you can use the Execute command in the name of Entity block found in the Entity procedures tab and replace the text with "gamemode survival" (or whatever other gamemode you want). You can also use the Set gamemode of Entity to:_ block in the Player procedures tab to directly change the gamemode without having to execute a command.