# Keyboard and Mouse Shortcuts

## General

<table data-header-hidden><thead><tr><th width="188"></th><th></th></tr></thead><tbody><tr><td><strong>Ctrl+S</strong></td><td>Load another project.</td></tr><tr><td><strong>Ctrl+Shift+S</strong></td><td>Save a new context.</td></tr><tr><td><strong>Ctrl+Shift+C</strong></td><td>Display the context management window.</td></tr><tr><td><strong>Ctrl+L</strong></td><td>Display the personal layer management window.</td></tr><tr><td><strong>Ctrl+O</strong></td><td>Display the map overview.</td></tr><tr><td><strong>Ctrl+E</strong></td><td>Display the elements explorer.</td></tr><tr><td><strong>Crtl+G</strong></td><td>Go to coordinates on the map.</td></tr><tr><td><strong>Ctrl+N</strong></td><td>Open a new map.</td></tr><tr><td><strong>Ctrl+Shift+H</strong></td><td>Organize open maps horizontally.</td></tr><tr><td><strong>Ctrl+Shift+V</strong></td><td>Organize open maps vertically.</td></tr><tr><td><strong>Ctrl+Shift+G</strong></td><td>Group all open maps into tabs.</td></tr><tr><td><strong>F1</strong></td><td>Open JMap online help.</td></tr><tr><td><strong>M</strong></td><td>When moving the cursor over the map, press to display an enlargement of the area surrounding the cursor.</td></tr></tbody></table>

## Navigation

<table data-header-hidden><thead><tr><th width="188"></th><th></th></tr></thead><tbody><tr><td><strong>1</strong></td><td>Move towards the bottom-left.</td></tr><tr><td><strong>2</strong></td><td>Move towards the bottom.</td></tr><tr><td><strong>3</strong></td><td>Move towards the bottom-right.</td></tr><tr><td><strong>4</strong></td><td>Move towards the left.</td></tr><tr><td><strong>6</strong></td><td>Move towards the right.</td></tr><tr><td><strong>7</strong></td><td>Move toward the top-left.</td></tr><tr><td><strong>8</strong></td><td>Move towards the top.</td></tr><tr><td><strong>9</strong></td><td>Move towards the top-right.</td></tr><tr><td><strong>+</strong></td><td>Zoom in.</td></tr><tr><td><strong>-</strong></td><td>Zoom out.</td></tr><tr><td><strong>*</strong></td><td>Rotate clockwise.</td></tr><tr><td><strong>/</strong></td><td>Rotate counterclockwise.</td></tr><tr><td><strong>Up arrow</strong></td><td>Move towards the top.</td></tr><tr><td><strong>Left arrow</strong></td><td>Move towards the left.</td></tr><tr><td><strong>Right arrow</strong></td><td>Move towards the right.</td></tr><tr><td><strong>Down arrow</strong></td><td>Move towards the bottom.</td></tr><tr><td><strong>Pressing the button at the center of the mouse or holding down the mouse wheel</strong></td><td>Move the map according to mouse movements.</td></tr><tr><td><strong>Mouse wheel</strong></td><td>Zoom in or zoom out, depending on which direction the mouse wheel is rotated.</td></tr></tbody></table>

## Edition

<table data-header-hidden><thead><tr><th width="186"></th><th></th></tr></thead><tbody><tr><td><strong>Ctrl</strong></td><td>1 - Snap the pointer to the closest node on the map. <br>2 - Keep only the results of a spatial operation by eliminating initial elements.</td></tr><tr><td><strong>Shift</strong></td><td>Snap the pointer to the closest line on the map.</td></tr><tr><td><strong>Alt</strong></td><td>Trace a line oriented according to an angle that is a multiple of 45 degrees.</td></tr><tr><td><strong>Space</strong></td><td>Complete drawing action by eliminating the last segment.</td></tr><tr><td><strong>Esc</strong></td><td>Cancel drawing operation.</td></tr></tbody></table>

## Measurements

<table data-header-hidden><thead><tr><th width="187"></th><th></th></tr></thead><tbody><tr><td><strong>Ctrl</strong></td><td>Snap the pointer to the closest node on the map.</td></tr><tr><td><strong>Shift</strong></td><td>Snap the pointer to the closest line on the map.</td></tr><tr><td><strong>Alt</strong></td><td>1 - Trace a line oriented according to an angle that is a multiple of 45 degrees. <br>2 - Erase an existing measurement by clicking on it.</td></tr><tr><td><strong>Space</strong></td><td>End measurement action by eliminating the last segment.</td></tr><tr><td><strong>Esc</strong></td><td>Cancel measurement operation.</td></tr></tbody></table>

## Labels

<table data-header-hidden><thead><tr><th width="188"></th><th></th></tr></thead><tbody><tr><td><strong>Alt</strong></td><td>Erase a manually created label by clicking on it.</td></tr></tbody></table>

## Selection

<table data-header-hidden><thead><tr><th width="191"></th><th></th></tr></thead><tbody><tr><td><strong>Ctrl</strong></td><td>1 - Snap the pointer to the closest node on the map. <br>2 - Add or delete selected elements.</td></tr><tr><td><strong>Shift</strong></td><td>Snap the pointer to the closest line on the map.</td></tr><tr><td><strong>Alt</strong></td><td>Trace a line oriented according to an angle that is a multiple of 45 degrees.</td></tr><tr><td><strong>Space</strong></td><td>Complete selection operation by eliminating the last segment.</td></tr><tr><td><strong>Esc</strong></td><td>Cancel selection operation.</td></tr></tbody></table>