Sorry, a slight misunderstanding.
Perhaps you could be more specific about which environment you are refering to.
Anyway, if you are working in ASSEMBLY and you want to display the reference planes for a part just RMB on the part and select Show Component > Reference Planes.
If you are in a part RMB somewhere in free space and select Show All > Refernce Planes, or select the plane in the history tree and RMB > Show.
The Show All / Hide All works in any modelling environment.
bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.