I was wondering if there was an easy way to add a ligand? Right now I use the tranches.sh and collections.txt file to get a collection of random ligands from the Enamine REAL library, but I also want to include a particular ligand of interest (already in pdbqt format). I was thinking of decompressing a tar.gz file, copying the ligand of interest into the directory, re-zipping the directory into a tar.gz, and then updating the counts of the ligands in the collections.txt file by increasing the count in the respective directory by 1. Will this work? Is there a better way?