One-click Subscribe Plug-Ins are not displayed on the Plug-Ins page since they are automatically generated by Microsoft Dynamics Marketing. To view One-click Subscribe Plug-Ins:
Open the email message you want to add a One-click Subscribe Plug-In to.
On the Body of the email, click the Design tab.
Position your cursor where you want to insert the field.
Select the One-click Subscribe Plug-In from the Plug-Ins pull-down menu.
Microsoft Dynamics Marketing inserts the One-click Subscribe Plug-In.