The Administration module has general database administration functions.
In the Administration module you can mainly delete temporary data under "Database Maintenance Tasks". This reduces the amount of data to be stored. Simply click on the desired action, which is then immediately executed and confirmed with a feedback message.
Under "Other" you will find the items "User messages and languages" as well as the "User dictionary" and "Defragment index".
The user dictionary can be found in the "Administration" module. There you can change the field names that appear in the reports. Like e.g. Date, Ordered by or similar.
The user dictionary