Dashboard layouts and the *spacer node*

I'm still not getting something with the dashboard.

There is a new option for a spacer which can be used to pad out the layout.

This is the layout I want.

Note the red arrow.

If that is not there, the LCD control is there. Not wanted.
So I made a dummy group and added a spacer node.

Yet when I hit deploy, it complains about an unused node. Group (Sorry)
Guess which one.

That seems problematic.

Or is it just me?

Which one?

The one with the spacer node in it.

Details (which I forgot to include)
NR 1.0.3
Dashboard 2.19.3
Ubuntu 18.04.3 LTS
Intel NUC 64 bit.

Please forgive me stupidity saying node when I meant group.