Dear Nico:
Of course they can; as long as they are carried out within an approved training programme. See FCL regulation.
Regards

Hi Juan
Thanks for your reply. That's what I've heard as well. But I couldn't find anything in Part-FCL. Do you have an exact reference to Part-FCL?
Best Regards, Nicolo

Hi Nico,
It's in AMC1 FCL.050 Recording of flight time, In the details of how to complete the Log Book (Column 11)