Multisite User Sync - How to modify?

Hi there,
installed Multisite User Sync Plugin which will automatically synchronise users to all sites in multisite. Roles of users will be same on everysite. If Role change in one site it will also synchronise to all site. If new user/site created it will also add to all site/users.

Now, Version 1.1 | By Shamim | View details is outdated.
Please advice how to update it for wordpress version 4.5.2 (php7).
Thank you