automatically adding variant

Hi,
When I added the characteristic "color" and added a number of colors, the variants with their codes were automatically generated. I can see them in the back-end and choose them in the front-end. Now I want to add a new color, "yellow". So I added a new variant to the characteristic "color". When I go to the main product>manage variants I can see yellow in the drop-down list, but there are no variants created. How can I do that automatically?
I searched the forum, couldn't find the answer, but I got the impression it should work automatically.

Hi,
The solution will probably to create it manually through the by using the "new" button of the page "Hikashop->Products->Your product-> 'Manage variants button'".
Or to remove the "color" characteristic from the "characteristic" tab of your product page, save, and add it again.

Thanks for the quick answer. And yes I could do that. But I expect, also looking at other forum responses, that it should add the new variant automatically. Your solution could mean a lot of work again and again. Are you sure it is not meant to add variants automatically?

If you want to, you can also regenerate all the variants of the product automatically by first removing the characteristics from the product, saving the product and then adding the characteristics again.

There is no system to generate new variants for new values of characteristics for all the products using the characteristic.
That's because it would crash after a few tens of products because there would be too much data to process.