Is there a log file in BOARD or a way to find out when a capsule/screen was created and by whom?
yes, there is.
In this link: BOARD LOGs in detail you can find the answer to your question
Hope I help you.
the log files suggested by Domenico Panetta keep tracks about the usage of the report, not about the changes of the structure of the capsules. If you want to know when a capsule has been created you can navigate to Capsules folder in Explorer and have a look to file properties, by which you can know when a capsule has been created, but not by whom.It could be very useful to have a log of the structural changes of a capsule.
Retrieving data ...