How to get the additional CS:S map props?

[Victorinox]

At this point when I check the Counterstrike map props folder at the spawn menu I just find the standard 4 maps (cs_assault, cs_militia, cs_nuke and cs_office). At the old GMOD I had access to the other map's props with a spawn list which I downloaded, but that one doesn't work anymore.
So as the title said, my question is how to get access to the extra CS:S map props.

Thanks in advantage,
-Victorinox