Welcome back to the Online Community, @mkennedy2000.

Unchecking the Show markup on billable expenses option only applies to invoices. Alternatively, create the estimate first and send it to your customer.

After emailing it, update the transaction's information and add the markups. This way, your customer will not see the information.

Since you switched over to the online version, I’m adding a link where you can find video tutorials to help get started: Training Videos and Webinars.

If there's anything else I can help you with, post a comment below. I'll be right here to assist further. Have a good one.