@pfps,

So a few things:

The KS230 Kit is only a three-way switch, meaning that it is only intended to be used in their intended design where there is only one main switch and one satellite. It is generally not possible to configure this switch with extras, however you may take a look around the forums as users have been able to use Kasa switches in 4-way configurations, despite them not being officially supported.

A few things to note, with V1.x versions, the order of the traveller wires does matter. There is also a maximum run length supported by the devices, so make sure the runs between your main and satellite are not extreme.