About Version Upgrade

About Version Upgrade

Hi,
 
We wanted to try standart version instead of free version to check if it covers our requirements.
 
But, when we clicked try standard version for 15 days, we lost a customized screen (We customized "Service Files (Servis Dosyaları)" as "Çağrı Takip"). Now, we want to return free version again to see our customized tab. Is it possible?
 
Thanks
Regards