Techtree Requirment for Item Usage

Seems straightforward,
I was wondering if it was possible to prevent the use of an item until a specific techtree requirment was met. Naturally I tired putting the requirement into "Techtree - Requirements", and setting the required level to 1, but unfortunately, the item could still be used without the "requirement" being met. I think it has to do with the fact that the "Techtree - Requirements" for an item only effects its purchase. Insights? Thoughts? Anecdotes?

I did a forum search, this is the closest I found, but it doesnt exactly pinpoint my problem.

Have you tried giving the techtree requirement to the ability that the item uses?

You have to find the orderid for item use, and then make a trigger that will order a unit to stop if he is ordered to use an item and the conditions are not matched.

Yea, I tried that shortly after posting and it failed to work. Which is shame because that seems most certain to work. Well, in an effort to compensate for this, I created a dummy item, which looks the same and has the same description, but doesn't do anything, and at the beginning of the description I put:

"Required Training:
- Blarg Blarg"

Only problem is, there is a half-return between the item name and the beginning of the text. Now since I am nit picky, and there is a half-return between normal abilities that have requirements, I was wondering if there was a way i could create a half-return between the "Required Training" text I put at the beginning, and the rest of the description.

Question, I duplicated the "defend" research as the technology for the item, and used the newly created one for the item, but I noticed that some abilities will activate even if you copied them, and made completely new ones. Wondering if that was the same for technologies. I'll try another technology as a requirement, since I think I have a trigger to allow the defend ability anyway. Sorry if that didn't make any sense, sorta in a hurry, and a bit tired. Thanks for your help!

Thats only half the problem. The other problem is getting it to show the yellow/goldish requirement in the item description. This is what happeneds when you try and fake it. (large box is the item with the manually state requirement)


As you can see it doesn't do the "half-return" that it does when the game inserts it itself. I'm anal I know, but this really should be possible. I can't imagine that its not supported.

You can't do a half return.

To tell you the truth, I couldn't even tell they were different until knowing the "problem" and looking very very closely. I don't think anyone is gonna notice =P.

Arg. I'm so anal!

I still can't note what the problem is.

Did you see the picture? The descriptions start at different vertical positions

hmnn.

No offense but I would rather call it obssesive/sick/nuts/crazy instead of just annal

I have a high quality standard, but in either case, I didn't call my self annal :P

I think the best solution is to just ask blizzard for the ability to give items tech requirements :) Thanks for your help guys!