How can I get the align with the specified coordinates?

[CAShuangchao]

Hello,
Mummer brings a lot of convenience to genome research. At the same time, I wonder if there is a scheme that can directly obtain the comparison of a specified location? At present, show-aligns can view the alignment of specified chromosomes, but it seems difficult to find the alignment of a specific coordinate or region from the alignment result containing the whole chromosome. Do you have any suggestions on this question？

Thanks