If you are using the Cadimage Door tool and wish to edit the position of a Sliding door, or pocket door opening direction arrow just go to Settings>Display Options>Plan View> Arrow Styles.
Do you know about the Direction Dependent Selection method? This comes in to effect when you draw a selection window. It has been in ArchiCAD for a number of versions now, but is hidden within the Info Box settings of the Arrow Tool… There are three options available and each will include elements… 1: if any part
Holding the Shift key when placing an element locks the direction, but you can also force hold a specific Angle or X or Y coordinate value. Hit Alt+A, Alt+X or Alt+Y whilst placing the element.