Modify existing PHP Script

I need a modification done. Currently the script will allow me to import a large number of embeded, downloaded or hot linked videos using a CVS file. It provides 9 fields to use, the fields are imported via the script. Often times I need more than 9 fields... For example one of my imports may contain 15 parts of data, but since I only have 9 fields to use, I cannot use that import file. See image. I need to make it so that either I have 20 or so "import fields" or the ability via ajax or something to add extra fields if needed... for the imports.. Please note the script does a "None" feature that will allow to "skip" a section of the import CSV file... hope that makes sense. Here is the part of the PHP script that is calling the 9 fields. "<div class="box box-primary"> <div class="box-header with-border"><h3 class="box-title"><?php echo __('import-fields'); ?></h3></div> <div class="box-body"> <?php $index = 1; foreach ($this->fields as $key => $name): ?> <div class="form-group"> <label class="col-sm-3 control-label" for="order_<?php echo $index; ?>"> <?php echo __('field'); ?> <i class="fa fa-question" data-toggle="tooltip" data-placement="top" title="<?php echo __('csv-field-help'); ?>"></i></label> <div class="col-sm-9 col-md-4 col-lg-3"> <?php $current = (isset($this->orders[$index]) && $this->orders[$index] != '0') ? $this->orders[$index] : ''; ?> <?php echo VForm::select('orders['.$index.']', $this->fields, $current, array('class' => 'form-control select2', 'id' => 'order_'.$index), array('display' => 'None','value' => 0)); ?> </div> </div> <?php ++$index; endforeach; ?> </div> </div>"