TKB TZ68E wall plug

I see loads of people confirming that the TKB TZ68E on/off wall plugs work with Smartthings hub but I can’t figure out how to make it pair / include.

Can anyone tell me how this can be done?

Thanks for the advice. There does seem to be some confusion on the inclusion process. Some sites say 3 fast presses for the new gen 5 Z-Wave plus versions and just one press for the old gen 3 type.

Can anyone with the new gen 5 Z-Wave Plus version confirm either way please?