[[Image:Info_icon.png|40px]] Click here to learn more about '''[[Defining Materials in EM.Cube]]'''.
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<td> [[Image:PMOM23A.png|thumb|620px|A planar structure with a two-layer conductor-backed substrate, two PEC patches located at the tops of the lower and upper substrate layers, four PEC vias located inside the lower substrate layer between the lower patch and bottom ground and an embedded dielectric film located inside the top substrate layer sandwiched between the two patches.]] </td>
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=== Drawing & Managing Planar Objects ===
[[Image:PMOM23B.png|thumb|270px|EM.Picasso's Navigation Tree populated with planar objects.]]
As soon as you start drawing geometrical objects in the project workspace, the Physical Structure section of the Navigation Tree gets populated. The names of traces are added under their respective trace type category, and the names of objects appear under their respective trace group. At any time, one and only one trace is active in the project workspace. An active trace is where all the new objects you draw belong to. When you define a new trace, it is set as active and you can immediately start drawing new objects on that trace. You can also set any trace active at any time by right clicking its name on the Navigation Tree and selecting '''Activate''' from the contextual menu. The name of the active trace is always displayed in bold letter in the Navigation Tree.
[[Image:Info_icon.png|40px]] Click here to learn more about '''[[Defining_Materials_in_EM.Cube#Moving_Objects_among_Material_Groups | Moving Objects among Trace Groups]]'''.
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<table>
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<td> [[Image:PMOM23A.png|thumb|620px|A planar structure with a two-layer conductor-backed substrate, two PEC patches located at the tops of the lower and upper substrate layers, four PEC vias located inside the lower substrate layer between the lower patch and bottom ground and an embedded dielectric film located inside the top substrate layer sandwiched between the two patches.]] </td>
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=== EM.Picasso's Special Rules ===