Hi Madhava,
The reason why you could not see the options to add document type when installing the EDI document type is maybe that you had none EDI Module schema installed, therefore it is not possible to use them in IS/MWS.
To solve this, you have to run the Installer and install those schemas that you would need.
Regards,
Yasmin
#Integration-Server-and-ESB#edi#webMethods