[TYPO3] how to set default values for the sr_feuser_register extension

[Blackseafisher]

Hello Everbody,
I have got a question regarding the sr_feuser_register extension.
I have tried to set default value for the user registration formular by using following constants:

=========
    plugin.tx_staticinfotables_pi1.country = XXX
    plugin.tx_staticinfotables_pi1.city = XXX

or

    plugin.tx_srstaticinfo_pi1.countryCode = XXX

or

plugin.tx_srfeuserregister_pi1.country =  XXX

=========

But this did not worked!

Has anybody an idea how to set default values for this extension.

Many thanks in advance!

Regards,
Ercan Karadeniz