Hidden Array Numbers question to Calculate a result based on previous question. - by: Maverick87Shaka

Hi to All,
Actually I have this scenario:
I have an Array Numbers question with the checkbox layout enabled, and the Question validation equation ( called Q3 as QuestionID ).
This question have 30 Y-Scale subquestions, and only 2 option for X-Scale, OptionA and OptionB.
This style works fine from users experience but have a lot of work to be done manually to have a good result.
The goal now is to being able to automatic calculate the result. The result that I need is only a numerical value for each Y-Scale subquestion.
So, I would like to create new Array numbers Question (hidden) with only one X-Scale, and "auto-fill" this hidden question with a numeric value based on previous question filled by user (QuestionID: Q3)
Where the value is:

• 1if the user check the OptionB column
• 2if the user leave the row blank ( no optionA or B selected )
• 3if the user check the OptionA column

These hidden question is only an idea, and I also appreciate any other suggestion to simplify the process.
I know that I can use the EquationType question to use buildin function to get other value, but these mean to create 30 hidden Equation Question to have my result.

Thanks