Hi Tracey,
a_dt had it right.
Currently (0.13) CTS is accessible via the "Add-on" Bar which may not
be visible by default. (Can be enabled by right-clicking the
background of any other symbol bar and checking it in the menu).
Normally it "should" also appear in the "Tools" Menu which it actually
does not (0.13). This will be fixed in the upcoming version 0.14
Michael