Enable the button whenever the editor is opened. Remove the context menu button for preview based on UI design suggestion.
Enable the button whenever the editor is opened. Remove the context menu button for preview based on UI design suggestion.

Charling-Huang/birt,Charling-Huang/birt,rrimmana/birt-1,rrimmana/birt-1,sguan-actuate/birt,rrimmana/birt-1,Charling-Huang/birt,rrimmana/birt-1,sguan-actuate/birt,Charling-Huang/birt,rrimmana/birt-1,sguan-actuate/birt,sguan-actuate/birt,Charling-Huang/birt,sguan-actuate/birt