How to change label of fileds in sidecar MultiSelectionListView js

Hi There,

I am working on to show sidecar fields based on some cases of one of our module. 

We are using below code : 

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({
extendsFrom: "MultiSelectionListView",
allowedFields: ["anml_animals_ii_inventory_item_1_name","type_2","test_type_c","timepoint_type","collection_date"],
initialize: function () {
this._super("initialize", arguments);
this.collection.reset();
},
render: function () {
this._super("render", arguments);
this.layout.$el.parent().addClass("span12 ii_specimen_selection");
},
addActions: function () {
this._super("addActions");
this.rightColumns = [];
this.meta.panels[0].fields = _.filter(this.meta.panels[0].fields, function filterFields(field) {
return this.allowedFields.indexOf(field.name) !== -1;
}.bind(this));
}
});
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allowedFields are showing the label of fields based on the name given in studio, I would like to use the label name as a custom name for ex : 
type_2 field's original label is : Type 2 but i want to show this as : Speciment Type .
 
Please help me on this one.....