Resetting to original volumes

I received a big foley session with thousands of files. In order to make fast scratch mix I changed the volumes (with scroll, hovering above the sound). Now before exporting for final mix, I would like to reset all of the sounds to original recording (0 dB).
I selected all of them and set the volume as required but it doesn’t seems to work.
Is there possibility to do it ?
Thanks in advance

Whenever you enter a value in the info line you can use ‘Ctrl + Enter’ to set all values to the same. Select all your events, enter ‘0’, press ‘Ctrl + Enter’ to commit.