# Editor improvements: input floats like "pi/2" or "2+2", context menu for "Output", new start form

**URL:** https://forum.castle-engine.io/t/editor-improvements-input-floats-like-pi-2-or-2-2-context-menu-for-output-new-start-form/533
**Category:** News
**Created:** [February 25, 2022, 5:05pm UTC](https://forum.castle-engine.io/t/editor-improvements-input-floats-like-pi-2-or-2-2-context-menu-for-output-new-start-form/533 "2022-02-25T17:05:02Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![michalis](https://forum.castle-engine.io/user_avatar/forum.castle-engine.io/michalis/32/3_2.png) [@michalis](https://forum.castle-engine.io/u/michalis)
#### Post date: [February 25, 2022, 5:05pm UTC](https://forum.castle-engine.io/t/editor-improvements-input-floats-like-pi-2-or-2-2-context-menu-for-output-new-start-form/533/1 "2022-02-25T17:05:02Z")

</div>

| [![Input expressions like "pi/2" into float edit boxes](https://castle-engine.io/wp/wp-content/uploads/2022/02/expressions-200x113.png)](https://castle-engine.io/wp/wp-content/uploads/2022/02/expressions.png "Input expressions like "pi/2" into float edit boxes") |
| [![New main form of editor](https://castle-engine.io/wp/wp-content/uploads/2022/02/new_main_form-200x153.png)](https://castle-engine.io/wp/wp-content/uploads/2022/02/new_main_form.png "New main form of editor") |
| [![Output tab - context menu](https://castle-engine.io/wp/wp-content/uploads/2022/02/output_context-200x113.png)](https://castle-engine.io/wp/wp-content/uploads/2022/02/output_context.png "Output tab - context menu") |

1. A small convenience when writing float values: you can input an expression, like `pi`, `pi / 2` or `2/3` instead of typing the actual value (3.14…, 1.57…, 0.6666….).

2. The “Output” tab has a simple context menu (right-click). It allows to clean it, copy selected line, copy all lines (to the clipboard). Great to copy-parse error message to show it someone.

3. I have changed the editor start form. No revolution (yet — I do have a more interesting redesign on a TODO list), I just wanted to expose nice buttons to open [examples](https://github.com/castle-engine/castle-engine/tree/master/examples) and [support us on Patreon](https://www.patreon.com/castleengine).