I have a question about the connection schema changes. If I add a new table to be synced, it will reset the data it other tables too (Even if I haven't changed their configuration)? And if a new column is added to an excising configure table would it be automatically updated?

No, right now any update in your schema (new table, new column, data type change) you need to run a reset data to get the new schema. There is a work in progress to improve this feature and handle those situations.