You can insert a circuit one line schematic diagram in either model or paper space.
Or select the option "annotationOffset" to define the annotations' positions relative to the features in one line diagram, by specifying the offset X and offset Y values. The annotation for a line feature will be located at the midpoint of the line plus the offset values, and the annotation for a point feature will be located at the insertion point of the block plus the offset values.
The one line diagram will fit into the window formed by the two corner points. Note that only line features are scaled by the window size, not blocks and annotations.
Here's an alternative workflow:
Or enter S to specify a scale factor for it.