Saving Variables possible?

Hello, I was testing out my map with other people on bnet and they told me I should implement a hero save system with WEU. I know how to do that, infact I have had the triggers written to do so for along time and they do work. The only problem is that there is a loooooooooot of in game global variabls that are associated with your character and they game will not run correctly without them. This caused me to disable saving and loading. Is there a way to save custom variables?

Thanks in advance.

For single player you can use gamecache (it has very high capacity), but on b.net and lan you must use generated keys for users to write down and input on the next game. But they don't have very high capacity and longer ones may be very hard to note.