If you just want to export a few objects at a time you can use copy and paste.
Select the objects you want to export
Choose →
Paste the objects into another application
If the other application accepts text then you should get the SQL representation of the object as text. If the other application supports SQLEditor object format then you will get a representation of the objects.
The SQLEditor document's dialect is used when exporting objects in this way, you cannot change the dialect during the copying process.