First of all, Skillcape emotes definitely aren't a necessity. No one knows what you're asking by "configuration of custom skillcape emotes"
I'm guessing you mean "Does anyone have custom skillcape emotes"..?
If so, I doubt anyone reading your topic does. They aren't needed but if you want to know how to create custom Skillcape emotes, it's relatively simple.
Go to your clickingButtons.java, find the case ID of the emote button you're clicking, and you're going to have to create a switch for each ID of each cape you're wearing, then search for an Anim and Gfx list, and go through each one and choose what Gfx/Anim you want for each cape. Yes it's a long process, it's pointless, and I doubt you'll like the outcome, but you asked and I answered.