How to manipulate a selected element in select2

$("#obtenerDatos").click(function(){
  //console.log($("#multisearch").val())
  var arrayValor = $("#multisearch").val()
  var arrayNombres = []
  $(".select2-selection__rendered").find("li").each(function(index){
    
    if($(this).text()!=""){
    var valorAnterior = arrayValor[index]
    arrayValor[index] = {
      id:valorAnterior,
      valor:$(this).text().replace("×","")
    }
    }
    
  })
  
  console.log(arrayValor)
})

function customMatcher(params, data) {
			//show childs if search with parent
		        data.parentText = data.parentText || "";
		        if ($.trim(params.term) === '') {
		            return data;
		        }


		        if (data.children && data.children.length > 0) {
		            var match = $.extend(true, {}, data);

		            for (var c = data.children.length - 1; c >= 0; c--) {
		                var child = data.children[c];
		                child.parentText += data.parentText + data.text;

		                var matches = customMatcher(params, child);

		                if (matches == null) {
		                    match.children.splice(c, 1);
		                }
		            }

		            if (match.children.length > 0) {
		                return match;
		            }

		            return customMatcher(params, match);
		        }

		        var original = (data.parentText + ' ' + data.text).toUpperCase();
		        var term = params.term.toUpperCase();

		        if (original.indexOf(term) > -1) {
		            return data;
		        }

		        return null;
		    }
	    
		$("#multisearch").select2({
		  language: "es",
		  closeOnSelect: false,
		  matcher: customMatcher,
		  placeholder: "Comienza tu búsqueda",
		  data: [{
		      id: 0,
		      text: 'Linea 1',
		      children: [{
		          id: 1,
		          text: 'San Pablo'
		        },
		        {
		          id: 2,
		          text: 'Pajaritos'

		        },
		        {
		          id: 3,
		          text: 'Las Rejas'
		        },
		        {
		          id: 4,
		          text: 'Ecuador'
		        }
		      ]
		    },
		    {
		      id: 5,
		      text: 'Linea 2',
		      children: [{
		          id: 6,
		          text: 'La Cisterna'
		        },
		        {
		          id: 7,
		          text: 'El Parrón'

		        },
		        {
		          id: 8,
		          text: 'Lo Ovalle'
		        },
		        {
		          id: 9,
		          text: 'Ciudad del niño'
		        },
		        {
		          id: 10,
		          text: 'Pajaritos'
		        }
		      ]
		    },

		  ]
		});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
	<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" />
	<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<select multiple id="multisearch" style="width:500px"  >
		</select>
    
      <button id="obtenerDatos" type="button" name="button">Obtener datos del select</button>