Hi,
>> I need to have the outline of the same Box in yellow. Is there any solution
>> for it to have an object with 02 different colors in a single layer?
You can use <CTRL><Click_onto_the_edge> to get edges of the box selected and - using property window - assign a different color.

But be warned, you are creating a structure which is not easy to handle, e.g. selecting all yellow edges and change them to green is far away from a 2-click job (compared to changing layer colors and so get the objects to the new color setting).
If you can describe what your plan is, maybe we can find a better solution or workaround for the job!
- alfred -
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Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ...
blog.ish-solutions.at ...
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CDay 2026------------------------------------------------------------------------------------
(not an Autodesk consultant)