- download the actual [rhTools_x.xx.zip] 3 installation archive
- in CMS backend select the file from "Add-ons" -> "Modules" -> "Install module"
You can access rhTools from your own addons:
require_once WB_PATH.'/modules/rhtools/include.php'; $tools = new rhTools();
Please have look into the class rhTools to get informations about the supported functions and features of this tool library.