Workflow for Creating Maintenance Work ORders

[Richard Williams (FCF)]

I wish to build two workflows that use IW31 PM Order Creation.  There will
be no triggering event as such, I will create a transaction.  This is my
dilema..we have two order types EMER and URGT, I want my work flow to
populate the Order type field for me, I have been experimenting with
containers and bindings but cannot get that field to populate it just stays
blank!!  Do I need to use a BAPI here?
 
Any help will be appreciated
 
Thanks
Richard