Option default values in csv import

Hi,
I am importing products, options and variants from a csv file.
I have given the default option value to the parent product but it does not seem to accept it.
I have deleted and re-imported but the default option value seems to get randomly allocated from one of the available options defined.
Help appreciated.
PhilP
(Hikashop Business 1.5.4)

The "Medium" size default value should be in the option line not in the main product line. That's why it's not taken into account.

Hi Nicolas,
Thanks for explaining that - it works fine now.
Phil