User Defined Data Class Restriction?

I created a custom data class. However, one of the data class definitions is setup as a static list, with a size limitation of 8. I need to increase this to 16. However, this doesn't appear to be an option. I was able to change it from 8 to 16 in the SQL DB, but that doesn't really help me here. Does anyone have any work arounds for this? My only other option is to create a new data class definition with a 16 limitation, hide the old 8, and copy the data from the first data class to the second....kinda hoping to just up this to 16. Please advise. Thanks.