Ok.From Jakarta we have this new feature called "Applies on Target Records" available on client scripts as well as on UI Policies which allows you to do the validations on your target tables. But if you are in previous version prior to Jakarta then you need to write a script include and a Client script to control the visibility of the variables in Variable editor as needed.

Please review the below thread where I have answered a similar query, you can use the same script with few changes as per your requirement, which should work for you.

Hide Variable Set in Variable Editor

Hope this helps.Mark the answer as correct/helpful based on impact.

Regards,

Shloke