It would be great to have an ability to pass argument to %alias_magic. For example, %alias_magic h history -l 30 so I can just type h to get 30 lines of last history.
%alias_magic h history -l 30
@joonro I agree, and this feature was intended to be added at a later date. Places to update:
Hey guys, I just put in a pull request that adds this feature.