Splice one or several rebar sets at the selected position or selected line reference.
A selected line reference splices all rebar sets it intersects.
To splice rebar using Splice Rebar - Pick Line
In 3D views, the reference you pick is projected to the current work plane and extruded to splice the sets. You can switch the current work plane, before or during the use of the splice rebar tool, to select the proper work plane.
Example, with rebar inside the wall, spliced by picking a model line drawn in the current work plane :