<p>By default a newly created spreadsheet has a single sheet. The most simple way to add a new one is to click the <spanclass="icon icon-plus"></span> button located to the right of the <b>Sheet Navigation</b> buttons in the left lower corner.</p>
<p>A new sheet will be inserted after the selected one.</p>
<p><b>To activate the necessary sheet</b> use the sheet tabs in the left lower corner of each spreadsheet.</p>
<pclass="note"><b>Note</b>: if you have a lot of sheets to find the necessary one make use of the <b>Sheet Navigation</b> buttons situated in the left lower corner.</p>
<li>right-click the sheet tab you wish to copy,</li>
<li>select the <b>Copy</b> option from the right-click menu,</li>
<li>select the sheet before which you wish to insert the copied one or use the <b>Copy to end</b> option to insert the copied sheet after all the existing ones,</li>
<li>click the <b>OK</b> button to confirm your choice.</li>
<li>right-click the sheet tab you wish to move,</li>
<li>select the <b>Move</b> option from the right-click menu,</li>
<li>select the sheet before which you wish to insert the selected one or use the <b>Move to end</b> option to move the selected sheet after all the existing ones,</li>
<li>click the <b>OK</b> button to confirm your choice.</li>
<li><b>Theme Colors</b> - the colors that correspond to the selected color scheme of the spreadsheet.</li>
<li><b>Standard Colors</b> - the default colors set.</li>
<li><b>Custom Color</b> - click this caption if there is no needed color in the available palettes. Select the necessary colors range moving the vertical color slider and set the specific color dragging the color picker within the large square color field. Once you select a color with the color picker, the appropriate RGB and sRGB color values will be displayed in the fields on the right. You can also specify a color on the base of the RGB color model entering the necessary numeric values into the <b>R</b>, <b>G</b>, <b>B</b> (red, green, blue) fields or enter the sRGB hexadecimal code into the field marked with the <b>#</b> sign. The selected color appears in the <b>New</b> preview box. If the object was previously filled with any custom color, this color is displayed in the <b>Current</b> box so you can compare the original and modified colors. When the color is specified, click the <b>Add</b> button:
<p>The custom color will be applied to the selected tab and added to the <b>Custom color</b> palette.</p>
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<p>You can <b>work with multiple sheets simultaneously</b>:</p>
<ol>
<li>select the first sheet you want to include into the group,</li>
<li>press and hold the <em>Shift</em> key to select several adjacent sheets you want to group, or use the <em>Ctrl</em> key to select several non-adjacent sheets you want to group,</li>
<li>right-click one of the selected sheets tab to open the contextual menu,</li>
<li><b>Insert</b> - to insert the same number of new blank sheets as the selected group contains,</li>
<li><b>Delete</b> - to delete all the selected sheets at once (you cannot delete all sheets in the workbook, as the workbook must contain at least one visible sheet),</li>
<li><b>Rename</b> - this option can be applied to each separate sheet only,</li>
<li><b>Copy</b> - to create a copies of all the selected sheets at once and paste them to the selected place,</li>
<li><b>Move</b> - to move all the selected sheets at once and paste them to the selected place,</li>
<li><b>Hide</b> - to hide all the selected sheets at once (you cannot hide all sheets in the workbook, as the workbook must contain at least one visible sheet),</li>
<li><b>Tab color</b> - to assign the same color to all the selected sheet tabs at once,</li>
<li><b>Select All Sheets</b> - to select all the sheets in the current workbook,</li>
<li><b>Ungroup Sheets</b> - to ungroup the selected sheets.
<pclass="note">it's also possible to ungroup sheets by double-clicking on a sheet which is included into the group, or by clicking any sheet which is not included into the group.</p>