Displaying Scanned document during invoice registration

[Loeffen Robert]

I have configured a workflow for processing incoming invoices.
In a certain step of the workflow an agent has to register the invoice
with transaction mir7.
If he executes the task i want to let the systeem immediately display =
the scanned document.
(not by clicking on the services button and displaying the attachments)
But how do i do this ?=20
Business object for scanned document is IMAGE method is DISPLAY.
How do i call that method when at the same time i am executing a method =
for business object BUS2081 Incoming invoice.
The system/workflow has to know which scanned document to display.
Also i can't call methods of other business objects as a 'second' =
method.
Do i need to program a new method for business object bus2081 which =
displays the scanned document ? And do you have any tips on how to do =
that.
 
Gr. Axelreno