A.S. H-like DR with l-mixing, use ICFG to generate the N+1, so MXCCF=0.
 &SALGEB RUN='DR' CUP='IC' MXCONF=4  MXCCF=0 MXVORB=16 ICFG=2 &END
1 0 2 0 2 1  80 0 80 1 80 2 80 3 80 4 80 5  90 0 90 1 90 2 90 3 90 4 90 5 90 6

1 0 0  0 12*0         !min occ.
1 0 0  1 12*1         !max occ.
1 0 0  1 12*0  1      !base occ + promo: 1snl + 1skl

0 1 0  0 12*0         !min occ.
0 1 0  1 12*1         !max occ.
0 1 0  1 12*0  1      !base occ + promo: 2snl + 2skl

0 0 1  0 12*0         !min occ.
0 0 1  1 12*1         !max occ.
0 0 1  1 12*0  1      !base occ + promo: 2pnl + 2pkl

1 0 0 13*0            !min occ.
2 1 1 13*0            !max occ.
2 15*0  1             !base occ + promo: 1s^2 + 1s2s + 1s2p

 &DRR NMIN=6 NMAX=25 &END
 &SMINIM NZION=26 &END
 &SRADCON MENG=-15 EMIN=0 EMAX=500 &END

Get n=5,4,3 by removing 80 5 & 90 6, 80 4 & 90 5, 80 3 & 90 4, respectively.
Get n=2 as usual - see e.g. Example 4.

Must specify Ryd (n=80) and cont (n=90) explicitly and N+1 configs since auto-
generation can only add a single dummy Rydberg, and we set both its N and L.
N is still a dummy but those L listed are the actual ones used, as are the cont.
        
MXCFF=0 is the default. But listed just to emphasise that we can't read the
4th group with it since MXCONF defines the N+1, and MXCCF would expect to be N+2