#RHandID is the ID of the item the client arms in your right hand (a one-handed weapon) with the
Arm/Disarm macro, event Macro 24 2. With your right hand empty, the macro equips
the item with this ID. With something in your right hand, the macro saves that item’s ID here and takes it off,
so running the macro again puts it back.
To arm a given item, set #RHandID to it and run the macro with your right hand empty. With the hand empty and
no ID set, the client says “You must first disarm a weapon in order to arm one.”
The value lives in the client: setting it changes it for every script attached to that client.
Example
Section titled “Example”set %sword ABCDEFG ; your sword's IDset #RHandID %swordevent Macro 24 2haltSee also
Based on the EasyUO wiki, edited for EasyUO Reforged. This text is available under the GNU Free Documentation License 1.2.