No. It was implemented using scripting...
Then how to set the Options in EPub export dialog box using scripting.?
Did you try
#targetengine "digital editions" OEBExportMenuItem.exportDocuments(app.activeDocument);
Don't have access to InDesign now, but this should work if script was loaded at startup
How can this be done using InDesign Server though? There's no user to provide the details and all other export functions can be scripted by first setting the export preferences. For some reason EPUB does not appear to have an export preference by which a programmer could set the options.