RadioButtonGroup inside a table column?

I need to place a RadioButtonGroup inside a table colum.

First column in the table is a description for second column.

In the second column should be the radio button group.

Currently I am strugglling with the Content Providers.

For the table it self there is a Basic Content Provider.

But for the Button Group this data cannot be used as the group requires a Group Option Provider.
I tried to create this Group Option Provider from several sources (the service output, the basic content provider, the control scoped variables for the table). None of them lead to desired behaviour.

As I need to complete the work tomorrow afternoon, I would appreciate it, if first ideas can be provided today.

I found the cause for this issue meanwhile.

We had an array selected for the selected value, but for Radio Button Group this is required to be a single string.

Now the control renders correctly.