See tutorial video 0.b - slide 34
You have to setup the JMS Template with "partial sharing".
www.jms2win.com/tutorial#jms12x-0b
Go in JMS Templates
- In file/folder, put the "templates" directory action = "special copy".
- In Common, put the template folder = {deploy_dir}/templates
Becarefull that if you already have created the slave site, this will not change the existing "/templates" directory - you have to delete it (or rename it) manually before re-applying the JMS Templates on an existing slave site.