[Qgis-user] Can't edit polygons

[KLGan]

Hi,

I created few vector layers importing KML files.

But I am not able to edit these polygons.

The Toggle Editing button is gray out, I am not able to click. It is also
not available from the menu.

But if I add a new Shapefile Layer, the Toggle Editing tool become
available for that new layer only. The editing tool is only not available
for the imported layers.

How do I edit those layers?

Thanks

klgan
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