slice filter disabled

Hi, i have a .xmf file representing a 3D volume … I am trying to display 3 slices of the volume interecting at an specific interest point. However i cant use the filter Slice, it’s disabled. Actually all filters are disabled.
Looking on internet, when they explain how to do this slices i want, i should be able to use the filter under my circumstance, ideas ?
Thanks!

06%20AM|690x402

If all filters are disabled, I am guessing that you forgot to hit the apply button on the properties tab after you opened the file. If that is not the case let us know.

It was exactly that, Thank you!
and sorry for the stupid question.

No worries. You are not the first trip over this.

And I prefer easy questions. : )