WPML translation of productsize-chart-button-label

Hi,
could I please to merge this translation for productsize-chart-button-label?

FIle: plugins\productsize-chart-for-woocommerce\public\class-productsize-chart-public.php
Method: productsize_chart_new_product_tab
Line: 298

if ( 'tab' == $assets['position'] ) {
	$tabs['custom_tab'] = array(
		'title'    => __($default_assets['productsize-chart-button-label'],'productsize-chart-for-woocommerce'),
		'priority' => 50,
		'callback' => array( $this, 'productsize_chart_new_product_tab_content' ),
	);

}

Actualy it is not possible to translate name label of custom tab and it is there “Velikostní tabulka”. I must to hotfixed for my client, but first update rewrites me my hotifx.

Thank you.

Zbynwk

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