If when Microsoft Dynamics GP is implemented, you know that email documents is going to be used, the functionality can be enabled alongside the rest of the system, but for clients who were not, for example, using Purchase Order Processing from the start it needs to be switched on after the fact.
When first discussing it with the client, my initial thoughts were to use a macro to enable merged from the supplier list to step through the vendors/creditors and enable that way.
However, just before I started to explain this, I remembered a feature tucked away on the Vendors/Creditors navigation list. If you click the button, in the Modify section of the area pane, of two chevrons pointing to the right you get a pop-up menu containing an Email Settings option:
