Can a lab be entered for multiple times?

since the lab will costs aobut 2 hours, if there are something that I must quit or pause the lab, can I quit first and re-enter to the lab?

If you follow along the training video on the course, it takes about 3 or 4 mins to set up then about 15 mins to follow along with the video (pressing shift and return to trigger the notebook to run the code)