So I just ended up using javascript to achieve what I want. var check = splunkjs.mvc.Components.getInstance("checkbox_interface"); var tokens = mvc.Components.getInstance("default"); check.on("change", function() { var s = check.val().join(" OR ") tokens.set("int_name", s); }); Not sure if I want to call this solution or workaround, cause if I use simple xml as below, it does work without additional code. <input type="checkbox"> <prefix>(</prefix> <suffix>)</suffix> <delimiter> OR </delimiter> </input> ... View more