Hi Ian,

When a NDockingPanel is in Autohide state it always overlap the rest of the panels. You can set the width of the panel if its AutoHideLocation is left or right and height if it is bottom or top.

Best Regards,
Nevron Support Team

I have 2 vertical docking panels situated on opposite sides of the main gui. Between these panels there is a horizontal panel, whose size is constrained by the 2 vertical panels. If I unpin the horizontal panel, when the user hovers on its tab the panel expands across the full width of the main gui. Is it possible to constrain the width by the two vertical panels. When you pin the panel it returns to the constrained size. Many thanks in advance.