Hi Lautaro,
Not knowing about the implemenation of this selection-frame and corresponding to the ur-guidelines.
It looks like one of the most requested features of the forum: Runtime Interaction GUI elements
You could create a programNode with a comboBox for product selection and add it to program tree. But I think you want to achieve the selection without opening the robot program source-tree.
You could create a urcap with a daemon which is waiting via socket for a value. But in this case the selection is on another device.
Are you working with a PLC (and a HMI) in your environment?
You could write a value to a register of the robot. In this case you also trigger this event from another device.
With RTDE you could also write to a register - but … from another device.
You could sacrifice your digital inputs ?!
But now Iam running out of ideas - maybe someone has a better simpler idea?
well, all of these suggestions are workarounds