@Vijay-Kumavat-0 I think you’d be better off customising the plugin above to be honest. It seems like you’d be reinventing the wheel otherwise.

I’d modify

/nodebb/node_modules/nodebb-rewards-essentials/lib/conditions.js
/nodebb/node_modules/nodebb-rewards-essentials/lib/rewards.js

These seem to be the two files that control what is in the dropdown lists.