This a screenshot of the Easy Version Control (picture taken from easyos.org to have the english language)
I find the "Containers part" confusing.
When you press the button Erase, the working session of the container returns to its original state. At first i thought it was used to completely delete a snapshot.
To clarify more, the row of buttons needs to be split.
First, selection of the container.
Second, button for return at the original state with another word than erase and button to take a snapshot
And last the buttons for the rollback