+ * The following commands are supported in insert mode:
+ * `ctrl-y` to copy the character right above the cursor
+ * `ctrl-e` to copy the character right below the cursor (**disabled by default**, see note 1 below)
+* Replace mode can be entered using `R`
+ * Limitations:
+ * If repeating with `.` gets a bit confused (e.g. by multiple cursors or when more than one line was typed), please report it with steps to reproduce if you can.