Pop-up layer solution ideas

Pop-up layer
Now that I've done all the work on the pop-up layer, the pop-up layer may have multiple identical table fill-in information, and now I want to put the pop-up user's information into its parent form for synchronous submission.
Now just don't know how to put this information into this big form. Ask the great God to help you!
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References:

is the use of JS implementation, but if there is more than one table information at a time, the implementation is still quite chaotic, novice newcomer, ask for help

The use of JS implementation of each pop-up table user Point confirmation when the information is inserted into the form of the hidden form input is not messy AH

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