Hi Tony,
maybe I've explained bad myself. The image attached was just an example.
In general, when the questions group is opened, all the sub-questions must be enabled.
If the respondent answer "Column A" and/or "Column B" and/or "Column C" and/or "Column D", then the "Not available" and "Not applicable" columns must be disabled. If the respondent answer "Not available" or "Not applicable" then the remaining options ("Column A", Column B", "Column C" and "Column D") must be disabled.
This must be done in all the sub-questions.