Here you can find an updated document of all of the new player commands in 2.90 along with a brief description of each command.
/Robbery - This command is used for the casino robbery minigame and signs up the player or starts it if it isn't running.
/Brief - If the capture the briefcase minigame is in the signup process, this command signs the player up.
/Rivershell - Again similar to the /brief command, this signs the player up for Rivershell if the minigame is in the signup process.
/my [char/alcohol/stats] - This command shows and sets various features of 2.90.
/customtax - If the player owns Las Venturas Airport, this command sets the entrance price.
/taxiprice - If the player owns the taxi company, this command sets the price of taxis.
/interest - If the player owns the Frisia property, this command sets the interest rate percentage between 1% and 6%.
/sams - If the player owns the Area 51 property, this command will enable / disable the Area 51 SAMS.
/minigun - This command starts / signs up the player to the new minigame, Minigun Madness.
/lotto - This command either purchases a lottery ticket with the chosen numbers, or shows help on the lottery.
/map - This command teleports the player to the map zone id specified.
/back - This command is used in map zones and teleports the player back to the map zone.
/vr - A command available only in map zones or for administrators, this repairs the players vehicle free of charge.
/r(eply) - By using this, you can reply directly to the last person who sent you a PM, or the last person you sent a PM to. Note: You cannot use this command to bypass any anti-spam stuff.
/account [info/help/upgrade] - In place of the proaccount commands, this command manages a players bank account from inside the private bank.
/proaccount - Shows general information about the Pro bank account.
/platinum - Shows general information about the Platinu bank account.
/Robbery - This command is used for the casino robbery minigame and signs up the player or starts it if it isn't running.
/Brief - If the capture the briefcase minigame is in the signup process, this command signs the player up.
/Rivershell - Again similar to the /brief command, this signs the player up for Rivershell if the minigame is in the signup process.
/my [char/alcohol/stats] - This command shows and sets various features of 2.90.
/customtax - If the player owns Las Venturas Airport, this command sets the entrance price.
/taxiprice - If the player owns the taxi company, this command sets the price of taxis.
/interest - If the player owns the Frisia property, this command sets the interest rate percentage between 1% and 6%.
/sams - If the player owns the Area 51 property, this command will enable / disable the Area 51 SAMS.
/minigun - This command starts / signs up the player to the new minigame, Minigun Madness.
/lotto - This command either purchases a lottery ticket with the chosen numbers, or shows help on the lottery.
/map - This command teleports the player to the map zone id specified.
/back - This command is used in map zones and teleports the player back to the map zone.
/vr - A command available only in map zones or for administrators, this repairs the players vehicle free of charge.
/r(eply) - By using this, you can reply directly to the last person who sent you a PM, or the last person you sent a PM to. Note: You cannot use this command to bypass any anti-spam stuff.
/account [info/help/upgrade] - In place of the proaccount commands, this command manages a players bank account from inside the private bank.
/proaccount - Shows general information about the Pro bank account.
/platinum - Shows general information about the Platinu bank account.