Notification after manual acceptance of quote

I think there is sometimes a situation (or as in our case it is almost always the case) when the person responsible for the quote approves it manually (but without creating a new project), it would be good if it would be possible to build such an email notification that after manually changing the status of the quote from sent to approved will trigger the notification action.

In our case, clients from large companies simply don't want to use TBM and won't use it so we are left in a station where the Project Manager is left with no automatic notification that the quote has been accepted. In our organization the Sales Person and the Project Manager are two separate people so such a notification would make the work much easier