Hi,
Re: Controller visualization
Yes, the plugin has a custom animation node where you can set the Motion Range - either to output a pose with motion controller or without:

The controller visualization itself can be activated, as you would normally in UE4:

**Re: Custom poses **
If you meant, automatically figuring out an appropriate grab pose regardless of object grabbed, no there’s no built-in support for that.
Unreal however has a rich set of animation tools that can make generating poses easy from within the engine.
You can either record a pose or animation easily for use in blending using just the built-in tools in Unreal. I showed one way of doing this in a community video I made recently at around 15:34:
Hope that helps.
Cheers,
Rune