Describe your idea

I have built island templates of different sizes and would like to have these templates aligned at the same world creation with a certain defined special block (usually a bedrock in the middle of the island) as the base.
But because each template have a different size, the offset value that needs to be adjusted is also different. And if I understand it correctly, the current setup only allows me to set the same offset value for these templates. So I can't get the defined block of these islands to align.
I think it is possible to increase the offset value of the template in the configuration for each template to align better in islands of different sizes.