Dear Walter,

Thanks for replying.

I will check the link you suggested and honestly, I feel myself disappointed that might there is no any solution for it as you have a lot more struggle than me which is unscuccessful.

I am wondered if its not possible for language experts 'to un-restrict' text entry in combo's textbox. Nobody could create a custom class like a combo for freely searchable list.

Anyway, I'm not hopeless :)

Thanks again and I will remeber to contact you if I could find some solution.
IRFAN