1. Change project
   1. create empty Subject in the target Project
   2. edit Session You want to move by clicking Edit
   3. change Project - You will se warning that the files will be moved
   4. change Subject - You need to select Subject from the list despite its being correctly displayed
   5. Submit changes
2. Change name of a Subject if target does not exist yet
   1. edit Subject
   2. change the name respectively
   3. sessions should be moved automatically
3. Change name of a Subject if target exists
   1. edit Session
   2. You may either move session to an existing Subject or create a new one with the correct name