How can I create a floating Attribute Editor for the selected node?

A combo of the mel copyAEWindow & showEditor global procs, which lives in this script:

C:\Program Files\Autodesk\Maya20XX\scripts\others\showEditor.mel

string $sel[] = `ls -sl`;
showEditor $sel[0];
copyAEWindow;

This will display an Attribute Editor docked in the main panel, then pop a dupe off.

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Also see:

• I want to open an Attribute Editor for a certain object. How to do so?