I don't have the google plugin but will install it soon. The outlook plug in allows you to send or send with Marketo, so that only the emails that we send with marketo get logged.
Does google not work this way?
Not quite. They have to uncheck the send with Marketo box every time to decide who they track. Most of sales team likes to leave it on so they don't accidentally miss an activity.
Can you explain what you're looking for a bit more? The chrome plugin will only show you activities for people you have either "sent a tracked email to" or "logged a received sales email email from". Both of these require the individual sales user to have taken explicit action to indicate the communication should be tracked and that they would like to see data related to that person.
Are you simply saying your sales team forgets to uncheck the "Track with Marketo" button? If so, are you asking that we have an option to allow you to change the default? The setting is actually persistent so if your sales users uncheck it, it will stay unchecked until they change it.