Thanks so much for this amazing software!

I have a kind of obscure question for which I could not find an answer on Google.

I've got the FliPQR-FlhB structure, from here:

This has 

5 copies FliP

1 copy FliR

4 copies FliQ

1 copy FlhB

I opened it and am using ribbon view.

I've colored the chains by protein type with these commands:

color /a,b,c,d,e purple
color /f red
color /g,h,i,j green
color /k yellow

Now, I'd like to have each chain shaded from N-terminus to C-terminus, e.g. dark red to light red, or something like that. (I see the rainbow option, but this creates a very complex view if all 11 chains are each an roygbiv rainbow.)

Almost as good, is there a way to easily label the N-terminus and C-terminus of each chain?

Any suggestions!

Thanks so much,

Cheers,

Nick