K Factor Grayed Out

Hello Everyone. Here's a question about the K Factor in a component.

When I open a part, I go to the EDIT menu and select SETUP, from there I'm able to select the bend allowance and select my K/Y factor

but they show grayed out...

If I select PARAMETERS instead

I can see what the current value is. I get a message that the value has been edited from the default.

I can reset the whole table by right clicking

But still, I'm not able to change the values.

Now, if I select a flange and EDIT DEFINITION, I can control the bend allowance independently...

Am I doing something wrong? Do you think these options are grayed out because the part was modeled in certain way or because my config is set up to gray it?

If I change it in every feature, would it have the same effect?

Thanks in advance.

I'm using the Windows 7 64 bit, creo elements pro 1.0 (WF5) M170.