Terneary plot - scale - reverse order

[#1]

I want to change the scale order. However, the option is not open to do it.

Already tried: I also changed to negative numbers to be in the order I want but then the script don't accept negative numbers.

mixture profiler: allow only formulas 

Is there any other solution? for this parameter be more flexible? 

[#2]

If you mean that you want to 'reverse' the scale, that is, 0 to 1 becomes 1 to 0, there is no way to do it. The Ternary Plot is a standard representation of the dependent proportions of three components.