@khareakshay 

so basically outside variables should be shown/hidden based on change of inside variable?

if yes then check below links, you will have to detect the add/remove and then handle the logic

Solved: MRVS detect when a row is removed or deleted - ServiceNow Community

Widget that reacts to onChange event of Variable - ServiceNow Community

Solved: Make a Catalog Item Variable Dependent on a MRVS S... - ServiceNow Community

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