Hello,
Sorry it isn’t possible directly. You would need javascript customization. Our sliders are basically jQuery UI sliders, so this might help: https://jqueryui.com/slider/#slider-vertical
Something like
$('.ipt_uif_slider').each(function(){
$(this).slider( "option", "orientation", "vertical" ).height('300px');
})The code is not tested, so please be careful.
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