How to use setchosen[]?

[ploturo]

Does anyone know how to use the setchosen[...] target reference on a menu field?

For example

<field id="someField" name="Example" type="user" style="menu"/>

...

perform field[someField].setchosen[Component,...?]

I've been able to figure out that the first parameter expects the id of a defined component, and there is at least a second parameter. But so far I've just gotten as far an "Invalid setchosen syntax used" error during compile, and not even any of the potential runtime errors.


Being able to set the value of menu-style user fields would make one thing possible that I haven't found any other solution for (creating a shadowed proxy pick to use with a menu_thing in the UI, and pass on the result to an already existing non-shadowed pick).

It would also help me to clean up some messy scripts/workarounds I've written, since I would be able to use a menu-style field as a simple script-modified linkage.