Bob,
You can manually add JPX files. I didn't see an option to save to that format.
You can load a texture then cut an paste it into a new layer. I don't know if you can do a mixing operation. Blending worked.
I have lots of PNG files Imade of various things, and I was able to use one to make a texture. It seems the program has one image per layer, and you just need to create additional layers.
No idea what the IPS format does.
Rich
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