Yes this is possible since the latest release :-) (v1.0.3.9696)
It is called “layered images”. You need rename the images that will be used for texture as “.texture.jpg”
So for example for each image you need:
image1.jpg
image.1.jpg.texture.jpg
When you import the folder, click on any image. You will see the normal name at the filename and in the “texturing layer” you will find the other image name.