In IGB you can save sessions that preserve your loaded data and track styling. The IGB session, saved as an XML file, can be loaded later so you can resume your work.
The Save Session... feature allows you to save the following:
To save a session, select File > Save Session.... You will then be able to save your IGB session (as an XML file) to a desired location on your computer.
To load a session, select File > Load Session.... Select your saved IGB session and choose Open to load your session into IGB.