Is it possible to use breakpoints on a simulated S7 PLC in PLCSIM?

Is it possible to use breakpoints on a simulated S7 PLC in PLCSIM v5.0 so I can run step by step through a program monitoring accu's AR's etc.
Do I need to select a certain CPU in the project, that has the capability for breakpoint-testing?
Thanks in advance!
JAWS

I like to single step too.

I used two manual inputs implement a single scan feature. The first input was the run/single scan input. The second input was the single scan toggle. This code was at the beginning of the program and would end the scan if the run/single scan was in single scan and the single scan toggle didn't change. This left all the registers as they were so they could be viewed.