C--- More models data. Only the most important variables of atomic part and residue part of atom_com.fh 
c--- is implemented at the moment. The rest is for 6.0 (?)
c
c depends on atom_com.fh
c
      integer MAXN_MODELS
      parameter (MAXN_MODELS = 2)
c wanrning: another MAXN_MODELS is defined in weights.fh (these two should be identical though!)
      
c--- ATOM part.
      integer n_atom_mod(MAXN_MODELS)
      integer n_atom_mod_max

      REAL   XYZ_CRD_mod    (3,MAXATOM,MAXN_MODELS)
      REAL   SD_CRD_mod     (3,MAXATSD,MAXN_MODELS)

      REAL   U_ANISO_mod  (6,MAXATOM,MAXN_MODELS)
      REAL   SD_ANISO_mod (6,MAXATSD,MAXN_MODELS)

      REAL   OCCUP_mod      (MAXATOM,MAXN_MODELS)
      REAL   SD_OCC_mod     (MAXATSD,MAXN_MODELS)
      INTEGER MULT_FACTOR_mod(MAXATOM,MAXN_MODELS)
      
      integer id_sf_mod(MAXATOM,MAXN_MODELS)
      
      integer ATOM_REF_mod_FLAG(MAXATOM,MAXN_MODELS)
      INTEGER OCCUP_REF_mod(MAXATOM,MAXN_MODELS)
      
      real occup_anom_mod(maxatom,MAXN_MODELS)
      real u_anom_mod(6,maxatom,MAXN_MODELS)
      
      REAL   UANISO_old_mod  (6,MAXATOM,MAXN_MODELS)      
      
c ---- for tls
      integer igroup_mod(maxatom,MAXN_MODELS)
      
c ---- for pdb
      INTEGER*4 I_ATOLD_mod(MAXATOM,MAXN_MODELS)
      CHARACTER ATM_NAME_INP_mod(MAXATOM,MAXN_MODELS)*4
      CHARACTER ATM_TYPE_mod(MAXATOM,MAXN_MODELS)*1
      CHARACTER ID_ALT_mod(MAXATOM,MAXN_MODELS)*1
      INTEGER*4 I_RESID_mod(MAXATOM,MAXN_MODELS)
      CHARACTER RES_NAME_mod(MAXRESID,MAXN_MODELS)*16
      CHARACTER RES_NUM_PDB_mod(MAXRESID,MAXN_MODELS)*12
            
      COMMON /ATOM_MODELS_CRD/ XYZ_CRD_mod,SD_CRD_mod,U_ANISO_mod,
     *      SD_ANISO_mod,OCCUP_mod,SD_OCC_mod,MULT_FACTOR_mod,
     *      id_sf_mod,n_atom_mod,n_atom_mod_max,
     *      ATOM_REF_mod_FLAG,OCCUP_REF_mod,
     *      occup_anom_mod,u_anom_mod,uaniso_old_mod,igroup_mod,
     *      I_RESID_mod,RES_NAME_mod,RES_NUM_PDB_mod,
     *      ATM_NAME_INP_mod,I_ATOLD_mod,ID_ALT_mod,ATM_TYPE_mod

      logical ligin1
      common /lig/ ligin1