Forums mIRC Help Are multiple-line %vars possible?

I'm working on helping someone fix their script, and there are multiple occasions were they call an alias that is only used once. I figured that I could insert the $alias into the event as a %var and reduce the file count by one in each occurance.

Instead I have moved the $alias into the same file, above the event.

This brings up a couple more question.
If the $alias is above the event, will it be put in to memory for quicker access later in the event execution?
Is it possible to put some of the information in to a hash table for even quicker execution? I haven't used hash tables enough to know much about them.

Thank you again for your speedy replies.