Hello,
Folder Resources are part of schedulix since Release 2.8.
I recommend upgrading to the latest Release 2.9.
Without folder resources you can just create a normal synchronizing resource at scope or job server level.
In this case you have to create a named resource for every job, batch or larger critical area you want to protect.
Have a look at the E019x_CRITICAL_REGION_xxxx examples.
Regards
Dieter