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Your LimeSurvey version: 5.3.17
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Good afternoon, 

I am currently trying to figure out how to merge the dropdown option into a multiple choice question. I am following this previous thread  Merge dropdown menu to radio list option - LimeSurvey forums  and I am wondering how to apply the code if I am using multiple choice rather than list (radio). Besides, is it feasible to create two dropdown menus in the same question? One if respondents select Option 2 and another one, with the same values, if the respondent selects Option 3. 

Regards, 

Pol
 

To answer the first part:
Change all "radio" to "checkbox"

Joffm

Thank you Joffm,

The first part worked out perfectly