Signals Notebook: Is it possible to restore deleted data from an experiment?

Is it possible to restore deleted data from an experiment in the below situations? 
1) User A creates an experiment and will user A able to restore the deleted data from the experiment history? 
2) User B shares Read and Edit access for an experiment where User A is the owner of that experiment. If User B deletes some data will he/she be able to restore the data? 

 

#1) YES, User A will be able to restore the deleted content and also, he/she can compare the old data with the current data too. 

#2) No, User B will not be able to restore the deleted content and he/she will only be able to compare the old and current data. However, only the Owner of the experiment will have access to restore the deleted data. 

Navigate to the required experiment and click on the History tab and you will be given the full audit trail of the experiment with all the changes performed on that experiment by all users associated with it.