There actually is a minimum partition size for this to work:
BCD Backup/Repair > SELECT: Change Boot Drive [top right, third selection] > Perform Action >
Select New Boot Drive > OK
If for reasons that are not relevant the target partition is smaller than 50MB, then there would be no warning and you would find out the hard way that you messed up because not all BCD information can fit on partitions smaller than 50MB.
EasyBCD should warn that the operation of Changing the Boot Drive *WILL FAIL* if user attempts to change the Boot Partition to a very small partition (less than 50MB).
Right now the only way to know that is the hard way, when you reboot and all is lost.
BCD Backup/Repair > SELECT: Change Boot Drive [top right, third selection] > Perform Action >
Select New Boot Drive > OK
If for reasons that are not relevant the target partition is smaller than 50MB, then there would be no warning and you would find out the hard way that you messed up because not all BCD information can fit on partitions smaller than 50MB.
EasyBCD should warn that the operation of Changing the Boot Drive *WILL FAIL* if user attempts to change the Boot Partition to a very small partition (less than 50MB).
Right now the only way to know that is the hard way, when you reboot and all is lost.