How to create dynamic inputs using lookup

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I have a dashboard that shows 3 priorities/3panels -Critical, high, low.
the dropdown Input is hardcoded using certain combinations of source name and message, that helps me bifurcate the data into 3 panels,
Now the requirement is that Users could select the SourceName from my last Panel(Other Panel) whenever they want to prioritize any SourceName and add it to any of the 3 panels i.e either Critical,High or Low.

Is there any simple way to achieve this?

Currently, I'm trying to use a csv lookup to get this done But, I'm stuck as there could be 1 source name with different message and both having different priority

For Example:

SrcName Message Priority
ABC Message 1 Critical
ABC Message 2 low

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How to create dynamic inputs using lookup

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