object_incrementwhere: <conditions> | <name> | <amount>
Increments a value on all dynamic objects meeting the given conditions - if the named value is not yet set on a given object, it will be set to the amount.
conditions is a comma-separated list of name=value pairs used to find the object(s) to increment.
name is the name of the value to increment on each object - if it exists, it must be an integer.
amount is the amount to increment the value by - it can be negative, but must be an integer.