During the validation, the upper part of the dialog shows a table with the destination store and the backups selected in the previous step.

Below this, along a timeline, the databases are shown in a destination store and in the backups as bars. If you position the mouse in the timeline area, you can zoom with the mouse wheel. You can move the time axis with the mouse on the time scale (keep the left mouse button depressed).

In the lower area, there are two signal tree windows A and B. Use the option fields in the columns A and B of the table above to decide which signal tree is shown in it. You can then compare the signal trees and, for example, check whether the backup and destination store match each other.