I would suggest to start with some preliminary readings on what
semilandmarks are and imply. Among many others, these two papers are
particularly interesting in my view (plus plenty more refs in these two
papers themselves, as well as in G, 2013, and maybe the introduction
to the Yellow Book
Dear Edgar,
Semilandmarks should be slid during Procrustes superimposition; treating
them as fixed landmarks will only add error into your analyses. Therefore
the answer is simply a) use software that supports semilandmark sliding.
Your options are great. And when it comes to deciding whether to