Adding new attributes to items possible?

[YouDoNotKnowMyName]

Hello everybody!

 

I have another question:

 

Is it possible to add a custom new attribute to an item?

 

For example:

An item has a value (if you sell it / buy it), weight, damage (if it is a weapon), ...

 

Would it be possible to add custom "values" to items?

 

I want to make a mod that gives every item a value for "volume", not only weight.

So for example a piece of scrap lead would have about the same "volume" or "size" value, but more weight then a wood scrap piece.

It would make inventory management a bit more realistic.

 

But is something like that even possible?