@pgaudioworks try someting like this, where "cmbSampleMap" is my Combo Box
// My Sample Map on Combobox const var sampleMaps = Sampler.getSampleMapList(); // get a Sample Map List const var cmbSampleMap = Content.getComponent("cmbSampleMap"); //combo box const var Sampler1 = Synth.getChildSynth("Sampler1"); // Sampler Reference // populate combo box with sample maps cmbSampleMap.set("items", sampleMaps.join("\n")); inline function oncmbSampleMapControl(component, value) { //Console.print(value); Sampler1.asSampler().loadSampleMap(sampleMaps[value-1]); }; Content.getComponent("cmbSampleMap").setControlCallback(oncmbSampleMapControl);P