Thanks Andrew - when you say it works do you see the slider label named 'profit'? I should mention that the script basically 'works' apart from the quirks of missing label and profit slider with unexpected values behaviour (more detail below).

The documentation seems to confirm that I am expecting the correct range.

Parameters are 3,50,0,200,"Profit",0
3 - slider 3
50-initial slider value
0 - minimum slider value
200 - maximum slider value ->Not being enforced - unless I just don't understand how sliders are meant to work. I would expect that by sliding this all the way to the right that values would increase from 0 to 200. What happens is the test begins at 50, and after touching the slider the value adjusts to 200 and can be increased beyond that. However it is no longer possible to reduce the value below 200 with the slider unless the test is reset. That seems like a bug.
name - expecting "Profit" instead I see "Slider 3"
0 - no tooltip