To the point...

You cannot directly pass tag values** to certain fields using the editors.
However you may pass them indirectly using the 'attribute wizard' and 'event links'.

A question was posed 2 days ago, something to the tune of:

"I want my player to gain a bonus and gain a secondary form of experience points(weapon experience) when using a certain weapon(/weapon type), a kind of skill/proficiency bonus. How?"

The PDF explains the rest but if you want the gist, you set up or wisely select an existing variable (Karma, for its visibility), an add to it periodically, and when the player equips the item add the sum of the variable to an existing stat of choice

the link:
(url="http://"http://ellrx.250free.com/wpn.pdf")http://ellrx.250free.com/wpn.pdf(/url)
If you downloaded it yesterday, you'll instantly notice the "enhancements".

**which is essentially the same as substituting a value in place of a variable, for those of you familiar with algebra;
take the simple function f(x)=3X+2. The tag &&Gold; for instance, is equivalent to X its value can be any number. Essentially you substitute a value in place of X, lets say the player has 20 gold pieces, the the function would reward them 3(20)+2 golds or 62 golds. The engine as it is will not allow you substitute these adjustable variables and as such limits you to set numbers, meaning the only time the number can be affected is during development. GO BACK!

EXTRA EXTRA!
(url="http://"http://www.geocities.com/ellrx/index.html")eLL' softWare updated 04.12.03(/url)

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... That staples it.