Customizable at the top of the file:
local axis_shift = 10;
local x_indi = "SSD";
local x_stream = 0;
local x_min = 0;
local x_max = 100;
local x_sections = 5;
local x_digits = 0;
local x_levels = { 80, 20 };
local y_indi = "RSI";
local y_stream = 0;
local y_min = 0;
local y_max = 100;
local y_sections = 5;
local y_digits = 0;
local y_levels = { 70, 30 };
local points_count = 5;
You need to create parameters for the indicators in function CreateParameters() and create indicators in function CreateIndicators(source). You can define what stream to use in _stream valirables. _min and _max defines the range for the axis. _sections defines number of sections/notches on the axis. _digits defines number of digits after the point for the values on the axis. _levels defines static lines on the axis (OB/OS). points_counts defines the length of the history on the chart.