You can switch regions with the "New Player Relocate" item:

However, you may only use this item if you meet the following requirements:
- Your HQ level is below level 8
- Your Medical Bay has less than 50% capacity
You'll then need to open the World Map by clicking on the orange "Regions" icon located in the bottom left, next to the chat:

From here, you can select another region to move to:

Find a free tile for your city in the new region and click “Relocate”. You can then read the confirmation and click Agree & Continue:
Your facility will now be relocated permanently to the new region.
Please note: You are also welcome to create an additional account in your preferred region if you have exceeded the requirements above, as we do allow players to have up to 5 accounts each.
Please contact Support here if you need any further help!