i put the 5 tracks configured for the auto accompaniment section of my keyboard in a track folder
 
what i would like to do is save the arrangement of folders as a track folder template so i could insert it in future projects but so far haven't found a solution 
 
is this functionality under a different name in sonar x3e
yes
 
To create a track template
1. Select the track or tracks you want to save as a preset.
2. Select File > Export > Track Template from the main menu.
The Save As dialog box appears.
3. Enter a name for the template and click Save.
Track templates use the file extension .cwx.
 
To insert a track or tracks from a template
list-image
Select Insert > Track Template to open the Import Track Template dialog box, then select the desired track template.
Or
Right-click in the Tracks pane and select Insert From Track Template > [track template name] or select More Track Templates.
This inserts tracks that are exactly like the template.
 
Cakewalk - Documentation & Help - SONAR X3 - Working with track templates