Sheet Metal unbend (eccentric) cone with markups

Hi,

I have drawn an eccentric cone part, that I can unbend without any problems.

But, if we would like to make this part ourself, we need some markups on the flat pattern. (bend lines that show where to place our press to bend the part)

I need to define the lines/markups/... in the bended situation. They need to be transferred to the flat pattern correctly.

We need these markups for almost every sheetmetal part we want to make.

Does anyone know how to do this?

We are switching to Creo (version 2.0 M030) at this moment, we used autocad until now.

thanks a lot,

Jeroen.