MACRO metashow

Customizes icon/cooldown information shown by a macro using the icon.
 * 1) show [options] action

Usage
If this meta-command is used with no arguments, the client will provide icon/cooldown feedback based on the /cast, /castsequence, /castrandom, /equip, and /equipslot commands in the macro.

Arguments
You may specify an action using any format supported by /cast; in particular:
 * spellname:Name of the spell of whose icon is to be shown, e.g..
 * itemname:Name of the item of whose icon is to be shown, e.g.
 * BagID slot : The bag the item is in (0 is backpack, etc...), and the slot number, starting at 1, of the item you wish to show, e.g.  for the first item in your backpack.
 * InvSlot : The slot on your character in which to show an item, e.g.  for the first trinket slot.

Details

 * If you don't know the spell, don't have the item, or the position you specified on your character or bag is empty, the button will show the default "?" icon.
 * Other data affecting the button's appearance will be pulled from this as well, such as the green border around equipped items, the number of items you have, and so forth.
 * The click action of the button will not be affected by this, you still need to use the commands to make the button do something.
 * Any successive metacommands to define the icon or tooltip will be ignored.
 * This does not affect the tooltip of the macro. If you want to specify both the icon and tooltip, you should use #showtooltip.