Hi kf123,
Found that this works as a temp option to remove mass amounts of checkmarks in one shot... Not a perfect option but it does work. Hope it helps.
1. Replace the link on your QBO webpage address bar with this link: https://app.qbo.intuit.com/app/managebillableexpense
2.Enter the beginning date for the transactions you'd like to remove the billable status from.
3. Click Save.
