[IMP-users] combine IMP.atom.Selectors ?

Hello list,

I am very new to IMP, thus probably coming with a bunch of fairly naive question.

Today I am wondering if it is possible to combine Selectors in order, for instance to select only ATOMS of chain A from a pdb file. If this is not directly possible what would you suggest to achieve the task ?

thanks a lot for any time spent to answer me

--Ben