Automation snapshots

I'm in the process of assembling a number of individual files into one large file. I need to reset the volume controls between each of the songs. In previous versions of Sonar, all one had to do was adjust the track volumes as needed, select all tracks and take a snapshot.
Now in X1 is appears that you have to take a snapshot of each track individually. With more than 20 tracks in the files, this is very time consuming.
Has anyone discovered a way to snapshot all tracks at the same time?

That was my first thought, but it doesn't seem to work. Even if you hold the "ctrl" key down, it only takes a snapshot of the active track.
Any other thoughts?

BTW, this is from the reference guide:

Snapshots
A snapshot is a setting or group of settings that SONAR’s controls snap to when your project
reaches a certain Now Time. You set all the controls to the values you want, and then create a
snapshot of these settings at a particular Now Time. This approach is useful, for example, when
your project contains a variety of distinct sections and you want to make a sudden change in one or
more settings between the sections.
To create a snapshot of a track or bus parameter
1. Move the parameter control to where you want it.
2. Move the Now Time to the location where you want to create the snapshot.
3. Right-click the control and choose Automation Snapshot in the pop-up menu. You don’t have
to write-enable the track or bus module.
An indicator will appear on the control to show that automation has been added, and a node will
be added to the control's envelope on the track.
4. Make sure the appropriate Automation Read button is enabled, play your project and listen to
the results. You can undo the snapshot by using the Undo command, or by taking another
snapshot at the same Now Time.
Successive snapshots do not update envelope node values
When taking multiple automation snapshots at the same Now time, new envelope nodes are created
instead of updating any existing envelope nodes. To address this issue, undo the previous
automation snapshot before performing a new snapshot.