In this case you can use Custom Social Media icon in the theme social media settings as shown in the attached screenshots.
You have to develop custom code to achieve this.
Developing custom code for custom functionality is beyond the scope of support that we provide here. See https://themeforest.net/item/jevelin-multipurpose-premium-responsive-wordpress-theme/14728833/support
If you are not a developer then you can consider hiring a developer to develop it for you. You can hire a developer from any freelance site. Shufflehound recommends the developer https://www.upwork.com/freelancers/~011652ffec8865c6d5