Here you will find usefull custom and core commands and their descriptions:
[AD - Opens a gump that will inform the durability of all your equiped items.
[AddToParty - Open a gump with the players online and allows you to invite to the party directly by that.
[Afk - Show others that you are away from the computer and how much time has passed, you can add a custom message to show as well like [afk making dinner.
[BandageSelf - Utilize bandages that are in your backpack, you can make a macro with this command to keep using the bandages.
[Bondinfo - Allows you to select the tameable you own and see how much time its needed to bond.
[Claim - Claim a corpse for gold, -c to carve the corpse first, -t to view or change the types of loot.
[Donate - Allows you to donate an unwanted item to the Donation Chest thats located inside the training room.
[Doom - Check how many points you have and whats your change of getting an artifact in Doom Dungeon.
[DrinkAgility - Drink any Agility Potion thats inside your backpack.
[DrinkCure - Drink any Cure Potion thats inside your backpack.
[DrinkHeal - Drink any Healing Potion thats inside your backpack.
[DrinkRefresh - Drink any Refresh Potion thats inside your backpack.
[DrinkStrenght - Drink any Strenght Potion thats inside your backpack.
[Dump - Allows you to move the entire content of one container to another.
[Emote - Opens a gump with the emotes, usefull if you want to roleplay sometime.
[Event - Teleport you to any running staff event (will show in chat when its working).
[Fame - Show your fame and karma.
[MyAchievements - Opens the Achievements gump.
[Getpet - Teleports all your pets to your location.
[Grab - Grab lootable items off of the ground and claim nearby corpses with the blue loot bag.
[HelpInfo - Gives information on a specified command.
[MyHouses - Displays a menu listing all houses of the player.
[Mystats - Show the info of your stats like hp, dex, int, faster casting etc...
[Password - Allows you to change your password.
[Petlore - Select an animal to check its taming requirements.
[Pointcommand - Allows you to point and show something to other players.
[Rankings - Opens a gump to show the top ranking players of the daily quests.
[RK - After you die you have 40 seconds of immortality, if you type this command you become mortal again without having to wait.
[Spellbar - Lets you select the magic books and spells you want to be fixed on your screen.
[Vote - Allows you to vote without having to click the stones in Britain Bank.
[loot - Grab lootable items off of the ground and claim nearby corpses with the new Master Storage.