The main idea - no more flying sheets and notepads for sequence ranges and stuff :)
With this tool you can save custom frameranges and quickly cycle betwen them. Also has control over the Frame tags, and lets you easily queue tag times which you need to get rendered.
*NOTE - The sequences are framerate independent - this meaning if you save a 250F sequence at 25FPS = 10sec. If you change the framerate to 30fps the sequence range will still be 250F.
The sequence data is stored in the file's properties page under "Custom"
The *.seq format is a simple text file with a custom extension