Tell Me how to set heights smoothly w/ no lags... NoT IN JasS,Please...!

I think you'll just have to find the balance between lag and smooth heightening. 1 by 1 is probably way too slow, and no-one will notice the difference. Try 10 at a time. It still shows smooth changing, and probably won't cause lag.

Please don't make posts like that. Sounds too whiny.

Also, the best way to do it is in JASS, especially if you're planning it to be able to be used by multiple players. In JASS you can assign local variables, which are declared/created each time the function is run.
The global variables of the Variable Editor are a pre-declared "pointer" whose value will be overwritten each time the action it is being used on runs.

Again, this depends entirely on what you're using it on, but GUI doesn't seem like an option for complicated things.

Based on Rui's point, GUI is actually the simplified, illustrated version of JASS, which is really, in fact, raw scripting, which is more versatile than its GUI counterpart.

With JASS, you can perform scripted actions unavailable in GUI with better, more controlled results. Setting heights in GUI was meant for objects that were to be flying/hovering and, because of this, its more rough.
In JASS, however, with the use of variables, you can raise your units in a controlled, timed, paced action.

I wish I could give you the code, but I think it would be more beneficial if you read JASS tutorials before we can give you any JASS code.
GUI is too rough for something this delicate.

Thanks a lot! I'll try to study JASS, but not now, cause I'm having mid-term exam, But Thanks A Lot!

Heheh, I've found it myself in GUI, but maaany leaks...
I think I must read the tutorial...
But........ I don't understaaand... It's HARD, can some one teach me....