The following steps can be performed to run pathsample to grow the database of local minima and transition states building upon the initial OPTIM connection and obtain a disconnectivity graph from the database. An initial path is made with OPTIM in the initial.path directory. The path.info file is copied to pathsample/path.info.start After removing or renaming min.data, ts.data, min.A, min.B and points.* a PATHSAMPLE run can be initiated by copying pathdata.startfrompath to pathdata and running PATHSAMPLE. The perm.allow and rbsymops files must be in the current working directory. The database can be grown and extended using the CONNECTREGION or UNTRAP keywords. The corresponding pathdata files are pathdata.connectregion and pathdata.untrap. There are several other ways to initialise the database besides using STARTFROMPATH. One is to copy the file pathdata.start to pathdata and run PATHSAMPLE. Data from OPTIM path.info files can be added using the ADDPATH keyword, as in pathdata.add. Example input for the SHORTCUT keyword can be found in pathdata.shortcut. The file odata.connect must be in the current working directory for any of the run types that spawn OPTIM jobs. Use the dinfo file to obtain the disconnectivity graph in tree.ps from the existing database using the disconnectionDPS program. Example output files are provided for comparison: output.startfrompath, output.connectregion and output.untrap.