Commands:
| Escape | = | Exit program | |
| 1 | = | Preset mode 1: Single test point, with one charge (the mouse). | |
| 2 | = | Preset mode 2: Two charges (one is the mouse) in animation mode with electric field vectors. | |
| 3 | = | Preset mode 3: "Symmetric" grid animation. | |
| 4 | = | Preset mode 4: Constant force field. | |
| 5 | = | Preset mode 5: "Springy" animation. | |
| + | = | Add positive charge at random position (or click mouse!). | |
| - | = | Remove last charge added. | |
| * | = | Add 10 positive charges at random positions. | |
| / | = | Remove last 10 charges. | |
| ] | = | Increase test charge density. | |
| [ | = | Decrease test charge density. | |
| C | = | Toggle "Cap magnitude" option. | |
| A | = | Toggle Animation mode. | |
| E | = | Toggle Electric Field Vector line drawing. | |
| M | = | Grab charge #1 with Mouse. | |
| D | = | Debug mode. (Currently displays only the frame rate.) | |
| T | = | Toggle Title screen overlay (program remains active). | |
| F1 | = | Toggle Help overlay (program remains active). | |
| F2 | = | Toggle Game Mode (try to hit the red target with the mouse)! | |
| F3 | = | Align charges in a Circle. | |
| F4 | = | Align charges in a Line along the left side of the screen (except mouse). | |
| F5 | = | Align charges in a Grid pattern (note: some charges may not be used). | |
| F6 | = | Randomize charge positions and set velocity to zero (except mouse). | |
| F9 | = | Green on black mode. (Default.) | |
| F10 | = | Black on white mode. (For printing screenshots.) |