Use with yasnippets?

[Mark Elston <m_elston@comcast.net>]

I know someone mentioned yasnippets earlier this month but I can't
find it.  And I don't know if it answers my question or not anyway.

I have a number of *very* similar entries in an org file.  I teach
a number of classes and I would like to set up a yasnippet to create
entries (actually a small tree of entries) for each class.  The
snippet would have several tab-stops so I can enter the class name
and lesson number once and have it appear several times in the
created entries.

However, when trying to actually expand this snippet and navigate
between the tab-stops, the tab key (naturally) closes up the tree
it just created and fails to let me enter the second (or subsequent)
placeholders.

Is there any way of using the flexibility of yasnippets in org mode?

Mark