Digital BW, The Print

Sincere apologies if this has been asked before. I did do a bit of a
search but couldnt find exactly what I was looking for.

I am using UT2 in a 1290 printer (using a 1280 driver - had a few
enquiries about this when I posted that I was doing this) and the
results so far have been excellent. No fading or metamerism!

What I would like to do is modify the curves, but I have no idea how.
Anyone able to give me some pointers or point me to a site that has
info on this?

I am particularly interested in making split tone curves, where the
highlights are one tone and the shadows are another. In the darkroom I
am fond of cold shadows and very slight sepia in the highlights. Is
there any way I can replicate this using the curves?

Another thing I would like to do is get a cold toned print on glossy
paper. Is there a way to do this with curves? I am using eboni ink so
I can get cold tones on matte with the sliders, and this works well,
but this wont work with glossy I understand as the eboni ink is matte.
Is there any way to make a curve to get cold tones?

Thanks for any help on this. Apologies for the many questions in one post.

Thanks again

Steve Taylor