How to simulate/testbench with IceStudio?

[zapta]

I am considering using IceStudio with a ColorLight-i9-v7.2_(FT2232H) board. Does it include simulation/testing capabilities, that is, testing individual blocks, with or without a board, injecting input vectors and examining the waveforms?

It does have related export capabilities (picture below) but I couldn't figure out what to do with them.

Alternatively, is there a clearly better free tool that you would recommend? I like the fact that IceStudio is open source and runs also on Mac OS.