How to send template variable, e.g. ${LayerThickness}, to the printer

[Momboz52]

Hi
I would like to have the variable ${LayerThickness} sent to the printer at each new exposure with the latest Photonic3D version, i.e. cwh-1.0.16. I have put this under the "Set Z Lift Distance (Optional)" parameter and this doesn't work. If I put any string there, this will be sent to the printer at each new exposure.
Could someone help?
Many thanks

[WesGilster]

If I put any string there, this will be sent to the printer at each new exposure.

That's exactly how it works.