remove last x amount of elements in a list?

Hi,

I am looking for a list object that can help me remove the last x amount of elements of a list of a relative size.

I have searched among the list objects, and I only seem to find list object that break up a list from nth position, which I can't use in this case, when I am dealing with relative list lenths aso.

- anyone has a solution?

Thanks for your help!

ana