Multiples images

Very Simple!
It's like any decent 2D progs : i believe that is named : hose-nozzle

The only difference is that I have yet the collections of images by any ways - so just input them inside Verve!
Of course the PNG or other format (?) transparence needing!

All that is more clear now?

[Taron]

Verve still has to become "decent", I guess. But it's on its way to become that, I think.

I would go for this:
Put as many pics as possible together in PS which belonging to a theme.
Save that as png.
Go to verve, load that pic and use "i" to record all pics to a brush sequence.

This would be a decent workflow.

Without PS:
Size you canvas as big your machine can handle with some layers.
Load those pngs which are making sense (in your example link there are 7 stones) and place them with SHIFT+v.
Merge layers if you want and again, record your brush images and save this as one brush.

In most cases more than 10 different pics for a theme are nonsense. Maybe 20 and you are safe.
Quickly done once you have them on your canvas and just transform the image brush rectangle.

It is already almost as "easy" as it is in painter, just find your way through instead of waiting for inventions from others
I can't wait to see your wonderful results.