Doublicate mail_data.dat

hello
It seems eM Client have two copies of mail_data.dat: AppData\Roaming\eM Client\4be818e4-2c48-4d1c-8709-4d5632f1363e\mail_data.dat and AppData\Roaming\eM Client\Local Folders\mail_data.dat. I’ve come from Outlook that I’ve been using for years so my email databse is rather large (approx. 9 GB) so would be nice only to have one mail_data.dat. Is that possible?
Regards
Erik