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	<div class="title">Tracker Add-Ons</div>
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<p>Applications can install add-ons so they can be invoked easily on a selection of files from Tracker. Only the add-ons that can handle a specific filetype are presented under <i>Add-Ons</i> from the context menu or the <i>File</i> menu of a Tracker window. Some add-ons don't necessarily need a file to work on and are thus always present.</p>
<p>Tracker Add-Ons, or links to applications that can act as add-ons, can be installed in three different locations (see topic <a href="filesystem-layout.html">Filesystem layout</a>):</p>
<table summary="layout" border="0" cellspacing="0" cellpadding="2">
<tr><td><tt>/boot/beos/system/add-ons/Tracker/</tt></td><td>&#160;&#160;&#160;</td><td> for system provided add-ons</td></tr>
<tr><td><tt>/boot/common/add-ons/Tracker/</tt></td><td>&#160;&#160;&#160;</td><td> for add-ons available to every user</td></tr>
<tr><td><tt>/boot/home/config/add-ons/Tracker/</tt></td><td>&#160;&#160;&#160;</td><td> for add-ons only available to yourself</td></tr>
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<p>The file name of an add-on can be suffixed with a dash and capital letter, and is then available via keyboard shortcut. For example, <i>Open Target Folder-T</i> opens with <tt>ALT+AltGr+T</tt> (at least with my keymap, you may have a different key combination).<br />
Of course, you have to take care of possible shortcut collisions when deciding on a shortcut. You can't have the same for different add-ons.</p>

<h2><a id="system-add-ons" name="system-add-ons">Haiku's Tracker Add-Ons</a></h2>
<p>These Tracker Add-Ons come with every Haiku installation:</p>
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	<tr><td class="onelinetop"><b>Background</b><i>-B</i></td>
		<td valign="top">Opens the <a href="preferences/prefs-backgrounds.html">Background</a> preferences to change the color or image of the Desktop or any folder. Invoked on an image file the Background panel is launched with that image already loaded as a potential background.</td></tr>
	<tr><td class="onelinetop"><b>DiskUsage</b><i>-I</i></td>
		<td valign="top">Starts the <a href="applications/apps-diskusage.html">DiskUsage</a> application with the according folder as basis.</td></tr>
	<tr><td class="onelinetop"><b>FileType</b><i>-F</i></td>
		<td valign="top">Invoked on a file, opens its specific <a href="filetypes.html">FileType</a> panel, otherwise the FileTypes preferences are launched.</td></tr>
	<tr><td class="onelinetop"><b>Open Target Folder</b><i>-T</i></td>
		<td valign="top">It can only be used on a linked file and opens the folder that file lives in.</td></tr>
	<tr><td class="onelinetop"><b>TextSearch</b><i>-G</i></td>
		<td valign="top">Starts the <a href="applications/apps-textsearch.html">TextSearch</a> application to look for a string in the selected folder (and its subfolders).</td></tr>
	<tr><td class="onelinetop"><b>ZipOMatic</b><i>-Z</i></td>
		<td valign="top">A selection of files will be added to a zip archive, invoked without a selection opens a panel to create an archive via drag&amp;drop.</td></tr>
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