Unreal Actors can be exposed so that their parameters can be manipulated directly from Smode.
To expose an Actor, add a "smode" tag to its parameters in Unreal:
The Actor will appear with its components in Smode when you reload the Unreal Map.
The Actor Transform will be inside its root component.
If the Unreal Actor has a parent, you also need to add a 'smode' tag to the parent.
bp_text_SmodeVariable
In the plugin content/utilities, you'll find an example actor blueprint with exposed variables that you can use to test supported properties.
In Smode, it will look like this: