Changing value in an object

Hi everyone,

I was wondering how I would be able to to change the value of an object without having to type in the values. I would love to be able to do it with a message box attached to the object defining the two (or more) values. I'm going to attach the simple patch here.

So in short what I want to do: instead of having to type the numbers 10 and 5, I want to have changeable parameter ($1 $2) that receives the info from a message box that I can change.

Thank you in advance!