diff -r 638a7458ef5e -r ae7f7fbb9cda src/main.cpp
--- a/src/main.cpp	Mon Jul 04 01:20:36 2022 +0300
+++ b/src/main.cpp	Mon Jul 04 15:37:22 2022 +0300
@@ -723,6 +723,7 @@
 		else {
 			checkEditingModeAction(EditingMode::SelectMode);
 		}
+		ui.modelEdit->setEnabled(modelSubWindow != nullptr);
 		updateTitle();
 	});
 	ui.messageLog->setModel(&messageLog);