Update Cost Price of all variants directly from Parent.

I see there are other posts about this, but they have not been updated for 3 years or more.

There does not seem to be an easy way to update the Cost Price of all variants in one go. An Export/Import is not worth it when you only have 5-10 variants, but it is also time consuming to open individual tabs and update all the variants one by one! I suggest it is added to the Parent 'Product Information' section below the other Price fields, with an update-all tick box, like those other fields.

I would imagine that Cost Price is more regularly amended than any other field!