I have been using Efex Pro since it’s first release and have created many custom presets.
I name them using the images name that I first created them for, and update the preset when I experiment with new similarly-toned images. I have over 100 presets now and they are named beginning with INDIA Portrait_xxx or CUBA dancers_xxx or DESERT Dawn_xxx… etc. I would LOVE to have subfolders within CUSTOM Presets to better organize presets by category, as I do in Adobe Lightroom.
Does anyone else want a Sub-Folder feature added to a NIK filter with Custom Presets?