       </label>
              <label>Label column
                <select id="labelColumn"></select>
              </label>
            </div>
            <div id="multiDatasetControls" class="row">
              <label>Datasets (numeric columns)</label>
              <div id="datasets" class="dataset-list"></div>
            </div>
            <div id="singleValueControls" class="row" style="display:none;">
              <label>Value column
                <select id="valueColumn"></select>
              <