You may activate more than one eSIM on your device, but only have one active eSIM at any one time. You can change your active eSIM status in your device settings.
However, you may only activate ONE Yoodo eSIM on your device at any one time. If you have an active Yoodo eSIM and wish to activate another Yoodo eSIM, then you will have to remove your current active Yoodo eSIM first. Also, don’t forget that your Yoodo account can have up to 5 lines only!