Back in the early days of using RPG Maker, there were too many limitations within its application. At the time I had been learning to resource hack (Originally it was to translate the up coming RPG Maker 2003 that would be coming out later this year, like Don Miguel had for RPG Maker 2000).
I found that using a resource hacker, I could change the maximum values for the scroll boxes, and thus increase the limits.
This also allowed me to modify the maximum number of variables, though now looking back that was probably not such a good idea depending on how it worked in code (probably a bit of memory stomping, though nothing has come up yet with anyone who has used it).
I released an EXE patch to the RPG Maker 2000 community so that others could benefit from this.