Button does not appear in the UI

Hello. I am trying to add a button to every line item in Quotes that later will be used to compute some discounts. I am having trouble targeting the right layout. I tried this one: custom\modules\Products\clients\base\views\quote-data-group-list/qoute-date-group-list.php

The thing is, I must be doing something wrong, as the button does not appear in the UI. This is my file (the buttons part is the new thing):

$viewdefs['Products']['base']['view']['quote-data-group-list']=array(
'buttons'=>array(
array (
'type' => 'rowaction',
'event' => 'button:custom_pricing:click',
'name' => 'custom_pricing',
'label' => 'LBL_CUSTOM_PRICING_LABEL',
'css_class' => 'btn btn-primary'
)
),
'panels'=>array(
array(
'name'=>'products_quote_data_group_list',
'label'=>'LBL_PRODUCTS_QUOTE_DATA_LIST',
'fields'=>array(
array(
'name'=>'line_num',
'label'=>null,
'widthClass'=>'cell-xsmall',
'css_class'=>'line_num tcenter',
'type'=>'line-num',
'readonly'=>true,
),
array(
'name'=>'quantity',
'label'=>'LBL_QUANTITY',
'widthClass'=>'cell-small',
'css_class'=>'quantity',
'type'=>'float',
),
array(
'name'=>'product_template_name',
'label'=>'LBL_ITEM_NAME',
'widthClass'=>'cell-large',
'type'=>'quote-data-relate',
'required'=>true,
),
array(
'name'=>'mft_part_num',
'label'=>'LBL_MFT_PART_NUM',
'type'=>'base',
),
array(
'name'=>'discount_price',
'label'=>'LBL_DISCOUNT_PRICE',
'type'=>'currency',
'convertToBase'=>true,
'showTransactionalAmount'=>true,
'related_fields'=>array(
'discount_price',
'currency_id',
'base_rate',
),
),
array(
'name'=>'discount',
'type'=>'fieldset',
'css_class'=>'quote-discount-percent',
'label'=>'LBL_DISCOUNT_AMOUNT',
'fields'=>array(
array(
'name'=>'discount_amount',
'label'=>'LBL_DISCOUNT_AMOUNT',
'type'=>'discount',
'convertToBase'=>true,
'showTransactionalAmount'=>true,
),
array(
'type'=>'discount-select',
'name'=>'discount_select',
'no_default_action'=>true,
'buttons'=>array(
array(
'type'=>'rowaction',
'name'=>'select_discount_amount_button',
'label'=>'LBL_DISCOUNT_AMOUNT',
'event'=>'button:discount_select_change:click',
),
array(
'type'=>'rowaction',
'name'=>'select_discount_percent_button',
'label'=>'LBL_DISCOUNT_PERCENT',
'event'=>'button:discount_select_change:click',
),
),
),
),
),
array(
'name'=>'total_amount',
'label'=>'LBL_LINE_ITEM_TOTAL',
'type'=>'currency',
'widthClass'=>'cell-small',
'showTransactionalAmount'=>true,
'related_fields'=>array(
'total_amount',
'currency_id',
'base_rate',
),
),
array(
'name'=>'vat_rate_name',
'type'=>'quote-vat-relate',
'initial_filter'=>'active_taxrates',
'filter_populate'=>array(
'module'=>array('TaxRates'),
),
'related_fields'=>array(
'vat_rate',
'vat_rate_products'
),
),
array(
'name'=>'gross_price',
'widthClass'=>'cell-small',
),
array(
"name"=>'custom-fields-button',
'label'=>'LBL_CUSTOM_FIELDS_BUTTON',
'widthClass'=>'cell-xsmall',
'css_class'=>'tcenter',
),
),
),
),
);