I use the following work-around to deal with this limitation (It only works when, like me, you encapsulate the calls to the gallery into HTML web pages). Here it is :
This is quite simple in fact, I organize the hierarchy of the folders the way I want, with the number of level I want. For instance :
/Nature
/Nature/Animals
/Nature/Animals/Birds/
/Nature/Animals/Mammals/
/Nature/Landscape/
/Nature/Landscape/Place1/
/Nature/Landscape/Place2/
/Family/
/Family/Vacations/
/Family/Childrens/
...
Then, inside my HTML web page template which calls the Imagevue Gallery, I set the path as an argument using '?folder='. This way, for each instance of the template I point to the gallery exactly where I want.
An example : to display my set of birds, I will set the path to 'content/Nature/Animals/Birds/' so the HTML web page adress is :
"
http://nature.photofolio.eu/?folder=con ... als/Birds/"
Hope this helps