Yes it is possible.
There is a method in the library called highlightValues(Highlight[] highs).
This method allows you to provide an array of objects Highlightto select multiple values.
Example:
Highlight h1 = new Highlight(...);
Highlight h2 = new Highlight(...);
chart.highlightValues(new Highlight[] {h1, h2});
Detailed guide can be found here . p>
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