# Configuration Manager

URL: https://irs.systems/en/docs/ltt/documentation/ltt-gui-manual/configuration/configurationmanager

The configuration manager is your central point to save and restore LTT GUI configurations.

![Configuration Manager](/docs/assets/ltt/assets/dlg-conf-man.png)

There are 3 common use cases:

1. backup an existing LTT configuration for a project
2. export a LTT configuration to transfer it from one LTT to another
3. switch between different projects

## Backup

![Backup](/docs/assets/ltt/assets/dlg-conf-man-backup.png)

By making a backup you create a snapshot of your current LTT configuration. You can later revert to that backup configuration anytime. The backup will include the following data:
- station configuration (number of stations, DUT types, groups, signals)
- limit configuration
- operation modes + parameters
- main configuration (ltt_main_configuration.xml)
- MesSy configuration (ltt_messy_config.xml)
- hardware configuration (ltt_module_config.xml)
- recording configuration (ltt_recording_config.xml)
- history configuration (ltt_history_config.xml)
- all test related data
	- DUT's
	- test orders
	- error counters

## Export

![Export](/docs/assets/ltt/assets/dlg-conf-man-transfer.png)

The **Export** button will save the same configuration as **Backup** but without test related data. This is useful if you want to transfer the configuration from LTT to another of the same kind.

## Import

![Import](/docs/assets/ltt/assets/dlg-conf-man-import.png)

To import a configuration just select a previously exported configuration zip file.

> Your current configuration will be irreversibly overridden! The GUI will be automatically restarted.

## Switch projects

With the help of the configuration manager you can even switch between 2 or more completely different projects (with different DUT types, DUT's, signals, limits, etc.).