# Windows: How can I switch back to Insert mode when the calculation editor has entered Overwrite mode? **URL:** \ **Category:** Uncategorized\ **Created:** [June 24, 2026, 3:08am UTC](https://community.exploratory.io/t/windows-how-can-i-switch-back-to-insert-mode-when-the-calculation-editor-has-entered-overwrite-mode/4267 "2026-06-24T03:08:24Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Takato\_Shiroto](https://community.exploratory.io/user_avatar/community.exploratory.io/takato_shiroto/32/749_2.png) [@Takato\_Shiroto](https://community.exploratory.io/u/Takato_Shiroto)\ **Post date:** [June 24, 2026, 3:08am UTC](https://community.exploratory.io/t/windows-how-can-i-switch-back-to-insert-mode-when-the-calculation-editor-has-entered-overwrite-mode/4267/1 "2026-06-24T03:08:25Z")
If existing characters get replaced as you type in the Create Calculation dialog, the editor has switched into “Overwrite mode.” You can return to the normal “Insert mode” by pressing the **Insert key** on your keyboard. This overwrite behavior is not specific to Exploratory — it is a standard Windows text input behavior. Each press of the Insert key toggles between “Insert mode” and “Overwrite mode.” #### Symptoms of Overwrite mode - The cursor changes from a vertical line to a horizontal line blinking at the bottom of the characters. - For example, placing the cursor between “a” and “b” in “abc” and typing “123” produces “a123” (overwriting the existing text) instead of the expected “ab123c.” #### If you can’t find an Insert key on your keyboard On laptops and compact keyboards, the Insert key may not be a dedicated key and is often assigned as a key combination. - It may be assigned to **Fn + another key** (such as Delete or 0). - If you still can’t find it, open the Windows **On-Screen Keyboard** and click the Insert key shown on screen. You can launch the On-Screen Keyboard from Windows settings ([Start] → “Settings” → “Accessibility” → “On-Screen Keyboard”).