If you ever have a need to move a select set of atoms a specific distance (in angstrom) in the X, Y and/or Z direction, this script can be used for that purpose. For example, this could be useful if you want to manually move a ligand out of a binding pocket. 

To use this script, from the Files Explorer in the Discovery Studio Client, navigate to the unzipped .pl file, right-click on it and select Open With | Script Window. Edit the X, Y and Z distances at line 39 in the script, select a set of atoms in the Molecule Window then launch the script using the Run command from the Scripting toolbar or by right clicking over the Script Window.