How can I migrate from google-analytics-multisite-async

Hi,
We have a multisite with about 3000 users, now we are using google-analytics-multisite-async plugin and we want to migrate to your google-analytics-async plugin but we need to be transparent to the users the we need to find a way to migrate the analytics custom code fron very user that have it configured in his account

Is that possible?, Could you help me?

Thank you

Carlos