How to unlock the Cypriot Leagues on FM20201) Download the Data File.
2) Drag the file into your "Editor Data" folder. located at \Documents\Sports Interactive\Football Manager 2020\editor data. If this folder doesn't exist, create it.
3) Open Football Manager 2020 and start a new career, In the top right of the screen, under "Database", make sure this Data File is selected.
4) Click "Advanced Setup" in the bottom right.
5) Once the database has loaded, click "Add/Remove League", then tick "Poland". The Polish lower leagues will then be playable.