Take particular calendar table info to other table

I have a google calendar linked to a table. I want to take particular information from that table and congregate that on a separate table1. My issue is only new information added to the calendar table is updated in the table1. How do I get All current and future information from the calendar table to update table1, instead of just new events? I do not see an automation that lets me sync all current and updated information from the calendar table to another table. Please help