I've never tried but this might work too:

refinement {
 refine {
   adp {
     individual {
       aniso_sel = chain A and (resseq 7:44 or resseq 61:149 or resseq 173:182 or resseq 202:254 or resseq 263:290)
       isotropic = not $aniso_sel
       anisotropic = $aniso_sel
     }
   }
 }
}