If I missed these in the Feature section I appologize.
I'd like to suggest the following related features to help make Listary easier to manage across multiple machines.
As a software developer, I understand that features like these are not a top priority so please don't feel like I'm saying the product is bad without them.
An Import/Export wizard for settings.
This would be for the purpose of allowing people who already use Listary on multiple machines to easily combine their settings.
Allowing the user to pick where the settings file is located.
This way people who use Listary on multiple machines could easily drop the settings file in something like Google Drive or Dropbox so they only have one file to contend with. I don't know how the project is setup or if the settings file has to be in a folder with other files it depends on or not but I wanted to bring this up. I think having the ability to share a settings file over multiple machines would only increase Listary's appeal to potential users.
If the settings file is tightly coupled with information about the machine it's on I would suggest abstracting the individual commands and keywords out into their own files so suggestion #2 could become possible.
Thank you for taking the time to read my suggestions. I really enjoy your product.
Keep up the great work!