Let scriptedPanel hold when open a file

[Anonymous]

With scriptedPanel I can make another graphEditor.
But, it's not same as native graphEditor.
When, "New Scene" or "Open Scene", native graphEditor is existing as hold.
But, add new graphEditor lose the panel.

I wrote like this.

window sampleWin;
frameLayout -lv false -bv false frm;
scriptedPanel -type graphEditor -parent "sampleWin|frm" "customGraphEditor";
showWindow;