ease

I would like to change the route argument in the [route] Object.

route-object

AFAIK Its not possible to do what you want with the route object. : If you are specifically working with OSC style arguments you should check (CNMATs) OSC-route which allows changing the arguments or alternately try jcom.oscroute (part of the Jamoma distribution) which if no argument is given to the object on creation provides a second inlet for changeable arguments.

check out these two patches which use the OSCroute object to control different sliders.

Thanks a lot [jcom.OSCroute] does a great JOB.