I understand that you are requesting to borrow a Cαиνα premium account in order to switch the page size for your design. While I cannot provide you with a premium account, I can offer you some guidance on how to change the page size in Cαиνα.
To change the page size in Cαиνα, you can follow these steps:
1. Open Cαиνα and log in to your account.
2. Create a new design or open an existing one.
3. Click on the "File" menu located at the top left corner of the editor.
4. From the drop-down menu, select "Page Setup."
5. In the "Custom Dimensions" section, you can either choose from the pre-set options or enter your own custom dimensions for the page size.
6. Once you have entered the desired dimensions, click on the "Apply" button.
By following these steps, you should be able to change the page size of your design in Cαиνα without the need for a premium account. If you encounter any issues or have further questions, feel free to ask.