Improve Feats Functions!

I think it'd be great if more tags can be added to the Feats document, like the InitModifier tag. Ideas include:
Dodge: modifies the dodge AC bonus.
Fort: modifies fortitude saves
Ref: modifies reflex saves
Will: modifies will saves

I'm sure there's other tags that could be added, DR, Natural Armor, etc.

There are three other things I would like feats to be able to do, but more modifications to the system would be necessary.

1) Add another user modifiable .txt file like the feats and spells files with a list of all the different types of weapons that you could then add to any attacks you program on a character, then create feat tags like WFocus, WCrit, WSpec, etc, to modify those different weapon types. If you did this, then you could probably create an SFocus tag that would add a bonus to a certain skill as well.

2) Make it somehow possible to have a feat that has to be activated, and would apply the numerical changes while activated.

3) The ability to apply more than one tag to a feat, as some feats do more than one thing, like the skill feats that add +2 to two different skills.