[stringtemplate-interest] Libraries?

[Dobes Vandermeer]

In other systems I've seen the concept of "libraries", which means you
can throw in a few different function libraries to the scope for
re-use.  In ST it seems like I just get to include one library per
file, since there's just a single superGroup  - if I want multiple
libraries I'd have to chain them all as superGroups.

Is that right ?  Is there something I missed?

Thanks!