Select component inside a Repeted Item list

I have a Repeated Items list that has the following items:
One Text Input
One Select Component that gets the data from a collection.

I have an On Change workflow that needs to get the updated content of these two components after edit, but they are not “bindable” it seems. They do not appear anywhere in the binding editor so I can use them in my workflow.
Select components that are placed in an ordinary (not repeat items) container, are available.

I have found the Text element by using a Javascript, but not the result from the Select.

This is the Javascript that works for the Text Input:

const index = context.item.index
const value = context.thisInstance.value

const updated = variables.temp_process_refs.map((row, i) =>
i === index ? { …row, ref_description: value } : row
)

variables.temp_process_refs = […updated]

On Change of the Select does not give me context.item.index or thisinstance.value.

Can anybody help?

Cheers and thanks in advance.

Tom J