k3b, saved projects, folders of interest

I use k3b for weekly backups to DVD. My only complaint relates to how it handles the folders included in a saved project. When I open the project and burn a folder of interest, it only burns subfolders and files existing in that folder at the time the project was saved. To include all the subfolders and files existing today in my folders of interest, I have to create a new project and add my folders of interest to it one by one.

Is there any way to get k3b to automatically update a project’s file listing with all the subfolders and files in a folder? If not, would different burning software provide this functionality?