I need extra strings for "tictooltips.tool.repair.material=Repair Material:" for all materials. http://i.imgur.com/yKQVWe5.jpg actually it uses adjective ("Медная" for example) but it should use noun("Медь"). So, it shouldn't be hard to add extra strings(or maybe make them optional)

That string is from Tinkers Construct (I'm simply using material.localizedName(), which gets the material.<materialname> string).

It looks like you should make all material.<materialname> strings the noun version, and then add material.<materialname>.display strings for the adjective versions (currently, the material.<materialname> versions only get used for displaying the current material in the part crafter GUI, and the material.<materialname>.display versions only get used for default tool names).

Can you show up me few specific examples? I don't really know that I should add 😄

In the Tinkers Construct lang files, you should update the material strings.

For example, if you want the noun version of Copper to be displayed by TiC Tooltips' "Repair Material" string, you would set:

material.copper=Медь
material.copper.display=Медная

Note: material.copper.display is only used if tool.<tooltype>.<material> doesn't exist.

Sorry for wasting your time. I understood 😄

I don't see how that can be the case. The material.copper string is only used for "Repair Material" and the part builder GUI (e.g. it says "Copper" on the right hand side when you put a piece of copper in), so I don't see how you'd need two different strings for those two things. They are describing the same thing (a material in the noun form), aren't they?

I'm updated my comment. Sorry again.

No worries. :)