How to customize eclipse market place dialog

By default, Eclipse Market place command is handled by MarketplaceWizardCommand handler . This handler loads remote catalogs by invoking this API http://marketplace.eclipse.org/catalogs/api/p if you do not specify any of your catalogs. I can think of following solution Add a command ( ABC Marketplace command) Add a handler ( ABC Marketplace handler) attach handler to the command and add this command to main Help menu. Invoke Market place client in the handler code MarketplaceClient.openMarketplaceWizard(List catalogDescriptors) or follow below doc to set parameter http://wiki.eclipse.org/Marketplace/REST