Activating a Configuration Template 
During installation, a default configuration, which includes configuration templates, is provided to your system. You can make custom changes within the system configuration templates and also activate new templates using the Config Tool.
When you apply the new template, it applies to all Java instances in the relevant cluster.
Prerequisites
Before changing the template, make sure your AS Java is stopped.
Procedure
Start the Config Tool by double-clicking the configtool script file in <SAP_install_dir>/<system_name>/<instance_name>/j2ee/configtool directory.
Choose
File 
Change System Template 
.From the dialog window, choose the relevant new template.
You have the following options, regarding the custom settings in your templates:
Apply existing custom settings of the new template – if the new template you want to apply has been previously customized, this option applies its custom settings. If it has never been used, its default settings are applied.
Delete custom settings from the new template
– if the new template has been previously customized, this option deletes its custom settings. If it has never been used, its default settings are applied.
Backup present custom settings of the new template – This additional option creates a backup of the available custom settings of the new template when selecting the option Delete custom settings from the new template. This helps you if you want to retrieve these settings in your future configurations.
NoteTo restore the backup custom data, choose
File Restore from Backup .End of the note.Copy current custom settings to the new template – the settings of the new template are overwritten by the custom settings of the template you have currently used when selecting the option Delete custom settings from the new template.
Choose OK.
Start the AS Java.
The new template is activated.