You can look in the docking_projectname.ou file and you will see at the end the last chemical docked.
e.g. #9
SCORES> No 9 Nat= 59 Nva= 6 dEhb= -1.880511 dEgrid=
-33.477320 dEin= 14.901500 dEsurf= 13.567739 dEel= 13.643638 dEhp=
-10.132321 Score= -13.302162 mfScore= -183.598849, dTSsc= 1.972459
Name= C29H22Cl2NO5
You can restart from the next chemical
- Docking/Open Project
- Docking/Run Batch --> choose local VLS Batch and then in the From entry add the next ligand number e.g. in this case 10