Remove old entries from "_Request" and "_EventsLog" tables

Hi,
I set up a demo installation of the CMDBuild 3.2 - openMAINT 2.0 distribution, to test its functionalities.

After several days of usage, I noticed that the “_Request” and “_EventsLog” tables are becoming huge.
Is it possible to configure a time limit for data retention, or should I implement a procedure to delete older records (e.g. older than one week)?

Kind regards,
Gerardo