Nested rows based on grid checkbox

Hi everyone,

I have a quite complex structure in the survey and I really hope you can help me to find a solution.

First, in Q1 I ask what companies respondent uses.

Then, in the next grid checkbox question Q2 (first table below), I ask what features respondent uses in each company (constructed list based on Q1). And after that, Q3 (second table), I want to who combinations that respondent selected based on Q2 and rate each of them with numeric entry.

Note: I have 18 labels and 7 rows

Is there an efficient way to do it? I tried ChatGPT, but is does not map list labels to correct combinations from grid.

I would really appreciate your help.

Q2:

Q3:

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