Edit Org source block in the current window

init.el

@@ -377,7 +377,8 @@
         org-html-checkbox-types
         '((unicode (on . "<span class=\"task-done\">☑</span>")
             (off . "<span class=\"task-todo\">☐</span>")
-            (trans . "<span class=\"task-in-progress\">▣</span>"))))
+            (trans . "<span class=\"task-in-progress\">▣</span>")))
+        org-src-window-setup 'current-window)
   :bind
   (:map gpolonkai/pers-map
    ("a" . org-agenda-list)