Adding or removing Envelope points is not supported.

The selected object has dashes, which will be removed.

The requested operation cannot be performed on Smart Line objects.

The selected object could not be converted to Béziers.

Envelope objects do not support effects.  Please remove effects first.

Envelope

The selected Text could not be converted to Béziers.

The Bézier Text tool must be loaded prior to Enveloping a text object.

Edit Envelope