Shift-Translate limit in the hangar?

[Hotel26]

I am laying the keel for a slightly bigger aircraft carrier in the SPH.  In the image below,the center of the green plate you see is just above the root node.  I am attempting to slide the Blue Axis of the Shift-Gizmo  a little further toward the back of the hangar but hitting a limit.  (I can slide it left and back but no further right in the view.)  Is there a configurable limit I might be running into?  I cannot see anything applicable in the settings.cfg...

I'm quite accustomed to sliding the root node around to shift the whole craft within the hangar so that I can work at the edges.  And I'm not ready to install a mod, (e.g. Hangar Extended).

Any advice will be appreciated!

[Hotel26]

FWIW, the default shift-translate limit appears to be 20m, node to node.