Define your own basis set
Example of basis format (6-31G basis):
****
H 1 0
S 4 2
18.73113700
2.82539370
0.64012170
0.16127780
0.03349460 0.00000000
0.23472695 0.00000000
0.81375733 0.00000000
0.00000000 1.00000000
****
Li 3 1
S 10 3
642.41892000
96.79851500
22.09112100
6.20107030
1.93511770
0.63673580
2.32491840
0.63243060
0.07905340
0.03596200
0.00214260 0.00000000 0.00000000
...To use your own basis that is not included in the bdf-pkg/basis_library, you can create a file XXX containing your basis in the same directory of the input and run script , and then you can just specify the basis in COMPASS like the normal basis by the name XXX.