GUI Config Tool 
Use the GUI Config Tool to offline configure AS Java via graphical UI.
You can use simple and expert mode for configurations.
To start GUI Config Tool, double-click the configtool script file in <SAP_install_dir>/<system_name>/<instance_name>/j2ee/configtool directory.
The following are the advantage tasks you can do using the GUI Config Tool (in comparison with the command console Config Tool):
Change the configuration template
Make log configuration
Manage the secure store data
Search for properties in Config Tool
Add filters
Here is a list of all the tasks available for GUI Config Tool: