It is easy to resume a program in the August software versions. Next to the start button is a slim gray button. It will resume at the last step that was done. pg. 113 of 2/August Manual.
Alternatively if you have older s/w you can look in the channel window and see what STEP you are up to (edit box under Dwell) and take a note of that; and navigate back to that step yourself.
For more details, please check the blog: