void setVisible(boolean v) {

		if (v) {
			frontEndTool.showDialog(this);
			panel.showData();

			setStatusText("Please select an Event Producer");
			setConnectAllEnabled(false);
			setDisconnectAllEnabled(false);
		}
		else {
			close();
			toolManager.removeWorkspaceChangeListener(this);
			panel.clear();
		}
	}
Dialog to show existing connections between tools and
to connect tools.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/ToolConnectionDialog.java