Currently: In board view, rows can be opened by the context menu or through the alt-click method. In timeline view, the rows can only be opened by the alt-click method.
Proposal: I wish there was a button to open rows similar to Tables “>”. In my opinion this would make rows a lot more user friendly. Even with the “alt-click” hover message, I guarantee most people in my company will never try to do this.
Note: There is also currently a bug that occurs for both existing row opening methods. See bug here.