Falang problem with custom field type customtext

-- HikaShop version -- : Business 2.4.0
-- Joomla version -- : 3.4.0.

Hi,

I'm using Falang to translate in 3 languages one part of my site and it is going quite well.
But I've noticed that is not possible to translate, in the custom fields, the value of the field type "customtext".

Any way to fix it?

Thanks Nicolas for your replay,
I didn't understand where to enter the "translation key" because customtext field seems to be different from others so I have managed to do in an other way.
It was not so important but now I'm having other worse problems.

1) In any (order, item etc) of the custom fields that I created was impossible to assign them to a category (or sub category).
After saving the category field was empty and the custom field was not displayed on the front-end. But by assigning them to individual products all works...

2) Order custom fields are correctly displayed on the front-end, everything seems fine till the end of the checkout.
But then in the back-end order page (and front-end customer order page) all the custom fields are empty... It seems that content posted has not been registered.
My first attempt to make an order worked, all fields were complete, but then stopped...

I'm not very technical so I really need your help.
Claudia

Thanks!

1st problem fixed with the upgrade.
2nd problem solved too, in fact it was a DB problem. I'm pretty sure it was caused by a too long name (field_keyname) of one custom field that I had created without a column name. Actually it was the same field that I couldn't delete from the back-end because it was giving an error.
I had to do it in phpMyAdmin and now everything is working again.
can I just suggest to further reduce the column name length?

Thanks again for your support, I'm an happy customer now...

Claudia

forget!