Prevent event handlers from being duplicated through menus or keyboard shortcuts

Status: Fixed
Fixed in: v26.10.4
Area: ide
Source discussion: https://forum.objo.dev/d/1378-desktop-contextual-menu-for-handler-event
Last updated: 2026-10-30

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Public summary

The Members sidebar allows event handlers to be duplicated, producing misleading numbered copies such as Activated1, Activated2 and Activated3.

Prevent event handler duplication through both the context menu and the Duplicate keyboard shortcut: Cmd+D on macOS and Ctrl+D on Windows/Linux. Ordinary members and whole designer controls should remain duplicable, including the handlers that correctly belong to a copied control.