You can use coordinate bond to represent coordination compounds (ferrocenes, metallocenes).
The coordinate bond type can represent the connection between an atom and a group of atoms. The coordinate bond has two types of representation:
arrow between two atoms,
dashed line between an atom and a group of atoms.
In the Edit > Preferences > Bonds menu item you can change the default line type of coordinate bonds to solid.
To draw a coordinate bond between two atom s just choose the coordinate bond from the bond list and draw the bond by specifying the required direction.
Select the atoms to be represented at one end of the coordinate bond by a multi-center.
Choose Structure>Add>Multi-center from the main menu or Add>Multi-center from the contextual menu. A multi-center represented by an ***** (asterisk) will be added. If you move the cursor to the multi-center the represented atoms are highlighted (blue circle around the atom labels).
Draw a coordinate bond from the multi-center and edit the other end of the bond if required. The asterisk representing the multi-center disappears after the bond has been drawn.
Repeat steps 2-4 to draw further multi-centers and coordinate bonds if required.
Several examples are collected in the Insert>Template Library> Organometallics template library.