Display same custom field value for variants

I have a question.
When I choose a variant on main product page,the custom fields will disappear.
I realized that I have to input values on variants' edit page again.
If my variants have same values with main product,
What can I do to save the repeat work that input the same values in variant edit page.
So that the custom fields will show on main product page and variant page

waiting for your replay!!

I have solved it by myself.
I modify this code in show_block_custom_main.php
<div id="hikashop_product_custom_info_main" class="hikashop_product_custom_info_main">
to
<div id="hikashop_product_custom_info_main1" class="hikashop_product_custom_info_main">
The custom fields will show on the main product and variants.
I don't know the reason , I thought it will cause other problems maybe.
Can someone could give me some advise?

Hi has this been solved in version 2.0?

Thanks for the reply Jerome I have the 2.0 business addition and I had to make the changes as described above to the show_block_custom_main.php

Is there a new setting to make it appear in the variants ?

I have HikaShop Essential 2.0 - a fresh install, and I have the same problem. It would seem it has not been fixed.

nicolas wrote: Can you add the code:

if(empty($variant->$fieldName) && !empty($this->element->main->$fieldName)){
					$variant->$fieldName = $this->element->main->$fieldName;
				}

after the line

foreach ($this->fields as $fieldName => $oneExtraField) {

in the file 'show' of the view 'product' via the menu Display->Views and try again ?