Method Community

I'd like to make an estimate that has line items that "upgrade" or are optional but don't add to the total.  The items would still need to have dollar amounts based on quantities, but wouldn't add to total. 

Hi - I'm looking to copy the information from an estimate, having saved the old one but keeping the items and quantities in tact for another, very similar estimate.  Can I add a button to the estimate screen?  If so, what would the actions be?