You don't need to move the cursor to find out frequency, you need to analyze the signal data itself.
Ask your question with more details, and you'll get a better answer.
If it's a digital signal, just search for a rising edge(A), then search for a falling edge(B), then search for a rising edge(C).
(C-A) / Sample Period is your frequency.
(B-A) / (C-A) is your duty cycle.
If it's an analog signal, establish a threshold and do basically the same thing.
