web-apps/apps/spreadsheeteditor/main/resources/help/en/UsageInstructions/InsertSymbols.htm

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        <h1>Insert symbols and characters</h1>
        <p>When working, you may need to insert a symbol which is not on your keyboard. To insert such symbols into your document, use the <img alt="Symbol table icon" src="../images/vector.png" /><b>Insert symbol</b> option and follow these simple steps:</p>
        <ul>
            <li>place the cursor at the location where a special symbol should be inserted,</li>
            <li>switch to the <b>Insert</b> tab of the top toolbar,</li>
            <li>
                click the <img alt="Symbol table icon" src="../images/vector.png" /><b>Symbol</b>,
                <p><img alt="Insert symbol sidebar " src="../images/insert_symbol_window.png" /></p>
            </li>
            <li>The <b>Symbol</b> dialog box will appear and you will be able to select the appropriate symbol,</li>
            <li>
                <p>use the <b>Range</b> section to quickly find the nesessary symbol. All symbols are divided into specific groups, for example, select 'Currency Symbols' if you want to insert a currency character.</p>
                <p>If this character is not in the set, select a different font. Many of them also have characters which differ from the standard set.</p>
                <p>Or enter the Unicode hex value of the required symbol in the <b>Unicode hex value field</b>. This code can be found in the <b>Character map</b>.</p>
                <p>The previously used symbols are also displayed in the <b>Recently used symbols</b> field,</p>
            </li>
            <li>click <b>Insert</b>. The selected character will be added to the document.</li>
        </ul>

        <h2>Insert ASCII symbols</h2>
        <p>The ASCII table is also used to add characters.</p>
        <p>To do this, hold down ALT key and use the numeric keypad to enter the character code.</p>
        <p class="note"><b>Note</b>: be sure to use the numeric keypad, not the numbers on the main keyboard. To enable the numeric keypad, press the Num Lock key.</p>
        <p>For example, to add a paragraph character (§), press and hold down ALT while typing 789, and then release ALT key.</p>

        <h2>Insert symbols using Unicode table</h2>
        <p>Additional charachters and symbols can also be found in the Windows symbol table. To open this table, do one of the following:</p>
        <ul>
            <li>either write 'Character table' in the Search field and open it,</li>
            <li>
                or simultaneously presss Win + R and then type <code>charmap.exe</code> in the window below and click OK.
                <p><img alt="Insert symbol windpow" src="../images/insert_symbols_windows.png" /></p>
            </li>
        </ul>
        <p>In the opened <b>Character Map</b>, select one of the <b>Character sets</b>, <b>Groups</b> and <b>Fonts</b>. Next, click on the nesessary characters, copy them to clipboard and paste in the right place of the document.</p>
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