Saving Play List

[sheltraw]

I just upgraded to Microstudio 4.0 and need some help. On my previous version (2.315) I was able to save my PLAY LIST, turn off the computer,
bring it up, use it again, make changes, save, etc. Unless I'm missing something here, I don't have that same capability with 4.0. I use microstudio as my background for my singing jobs. If someone can tell me how to assemble my play list and then SAVE IT so that I can turn off my computer, carry it to my job, restart the computer and bring up my play list, I would appreciate it. After using my previous version that way for a long time it seems like a "no-brainer" that I should be able to do the same with this new, and improved, version. What am I doing wrong?
Thanks,
Jim Sheltraw