SMeshWidget - Hardware Instanced Slate Meshes Thread

This stuff looks very promising.

In that example you posted, there are 5 Particle widgets, which generate a bunch of small rotating squares as seen on that screenshot.

How many drawcalls are generated in this example?

Is it 1 drawcall per ParticleWidget? ie: 5 drawcalls in this example.

Or 1 Draw Call per unique mesh per widget? ie: 1 drawcall since all 5 different Particle Widgets use the same unique mesh.