Hit <Enter> again to change the functiontype from
"Functiontype: From R to R"
to
"Functiontype: From C to C".
Hit the <Cursor Down> key one time to go to the next menu
item "Graph", and hit
<Enter> again.
Go to "Orbit diagram for variable c
(Mandelbrot) >" by pressing the <Cursor Down>
key three times. Hit <Enter> again.
Go to "Escape time" by pressing
the <Cursor Down> key one time. Hit <Enter> again.
Hit the <Cursor Down> key two times until the item
"Plot graph >" is highlighted.
Hit <Enter> two times. After the first <Enter>
you'll see a summary of all relevant parameters, the second
time the Mandelbrot set is calculated.