For more information, please see Wiki Page Editor und Wiki Syntax

Wiki Syntax
Bold text     __Text__
Italic text     2 single quotes (').     '"Text"'
Underlined text     ===Text===
Farbiger Text ~~#FFEE33:Text~~ oder ~~yellow:Text~~. Will display using the indicated HTML color or color name. Color name can contain two colors separated by a comma. In this case, the first color would be the foreground and the second one the background.
Deleted text     2 dashes "-".     --Text--
Überschriften !heading1, !!heading2, !!!heading3
Ein-/Ausblenden !+, !!- show/hide heading section. + (shown) or - (hidden) by default.
Autonumbered Headings !#, !!#, !+#, !-# ...
Inhaltsverzeichnis {toc}, {maketoc} prints out a table of contents for the current page based on structures (toc) or ! headings (maketoc). Common optional parameters for maketoc are: title|maxdepth|levels|nums, and for toc are: order|showdesc|shownum|structId|maxdepth|pagename.
Horizontal rule     ----
Text box     ^Box-Inhalt^
Centered text     ::Text::
Dynamische Variablen %Name% Inserts an editable variable
Externe Links use square brackets for an external link: [URL], [URL|link_description],[URL|link_description|relation] or [URL|description|relation|nocache] (that last prevents the local Wiki from caching the linked page; relation can be used to insert rel attribute for the link - useful e.g. for shadowbox). For an external Wiki, use ExternalWikiName:PageName or ((External Wiki Name: Page Name))
Eckige Klammern [[foo] benutzen, damit [foo] ausgegeben wird.
Wiki-Referenzen ((Seite)) oder ((Seite|Beschr.)) für Wiki-Referenzen
Listen * für einfache Listen, # für numerierte Listen, ;Wort:Definition für Definitionslisten
Indentation +, ++ Creates an indentation for each plus (useful in list to continue at the same level)
Tabellen || row1-col1 | row1-col2 | row1-col3 row2-col1 | row2-col2 | row2-col3 ||
Titelbalken     -=Titel=-
Monospace font     -+Code sample+-
Line break %%% (sehr nützlich, vor allem in Tabellen)
Mehrseitige Seiten Benutze ...page... to separate pages
Nicht geparste Bereiche ~np~ Daten ~/np~ Prevents wiki parsing of the enclosed data.
Vorformatierte Bereiche ~pp~ data ~/pp~ Displays preformated text/code; no Wiki processing is done inside these sections (as with np), and the spacing is fixed (no word wrapping is done). ~pre~ data ~/pre~ also displayes preformatted text with fixed spacing, but wiki processing still occurs on the text.
Kommentare ~tc~ Tiki Comment ~/tc~ makes a Tiki comment. It will be completely removed from the display, but saved in the file for future reference. ~hc~ HTML Comment ~/hc~ makes an HTML comment. It will be inserted as a comment in the output HTML; these are not normally displayed in browsers, but can be seen using "View Source" or similar.
Schreibrichtung {r2l}, {l2r}, {rm}, {lm}Insert resp. right-to-left and left-to-right text direction DIV (up to end of text) and markers for langages as arabic or hebrew.
Special characters ~hs~ hard space, ~c~ ©, ~amp~ &, ~lt~ <, ~gt~ >, ~ldq~ “, ~rdq~ ”, ~lsq~ ‘, ~rsq~ ’, ~--~ —, ~bs~ \, numeric between ~ for html numeric characters entity

Because the Wiki paragraph formatting feature is on, all groups of non-blank lines are collected into paragraphs. Lines can be of any length, and will be wrapped together with the next line. Paragraphs are separated by blank lines.

Note that plugin arguments can be enclosed with double quotes ("); this allows them to contain , or = or >.
More help here

Beschreibung
Add to cart Adds a product to the virtual cart. The cart can be manipulated using the cart module.
Artikel Includes an article's content within the page.
Article List Inserts a list of articles in the page.
Autor Color codes parts of the page like 'Track changes' in Office programs.
Zurück Displays a link that allows to go back in the browser history
Box Box im Theme-Layout in Wiki-Seite einfügen
Kalender Includes a calendar and/or a list of calendar events.
Kategorie Alle Einträge der aktuellen/angegebenen Kategorie in die Wiki-Seite einfügen
Category Orphans Noch nicht kategorisierte Tiki-Objekte anzeigen
Category Path Fügt den Kategorienbaum für jede Kategorie an, zu der diese Seite gehört
Center Zentriert den PlugIn-Inhalt innerhalb der Wiki-Seite.
Quellcode Zeigt einen Quellcode-Ausschnitt an
Div Insert a division block, span, blockquote or other text formatting on wiki page.
Definition List Legt eine Definitionsliste an
Ereignisse Includes the list of events from a calendar in the page.
Fade Displays a label. On click, the block of content will fade in and fade out.
Fancy List Creates a fancy-looking list
Fancy Table Daten im Tiki gerade/ungerade Stil anzeigen
Datei Displays a link to a file (either from the file gallery or an attachment to a wiki page) and can display an image attachment.
Dateien Displays a list of files from the File Gallery
googlemap Displays a Google map
Gruppe Display wiki text if user is in one of listed groups
Group List List of groups including a group
Group Stats Displays some stat about group belonging
HTML Include literal HTML in a Wiki page
Bild Display images
Aufnehmen Include a page's content.
Invite Invite an email in groups.
Sprache Displays the text only if the language matchs
Mail Allow to send mail to groups or user or email directly
Mediaplayer Simple mp3 or flv Player
Member Payment Receive payments from a member and extend the length of the membership to a group.
Insert Module Displays a module inline in a wiki page. More parameters can be added, not supported by User Interface.
Mouseover Create a mouseover feature on some text
Bezahlung Display a payment request's details based on the user's privileges and the state of the payment. The payment details may include the payment options.
Plugin Manager Displays a list of plugins available in this wiki.
Zitat Quote text by surrounding the text with a box, like the [QUOTE] BBCode
Remarks Box Displays a comment, tip, note or warning box
Snarf Include the content of a remote HTTP page. Regular expression selecting the content portion to include must be specified.
Sortieren Sortiert den PlugIn-Inhalt innerhalb einer Wiki-Seite
Split Seite in Spalten und Zeilen aufteilen
Subscript Displays text in subscript.
Superscript Displays text in superscript (exponent).
Tabs Provides tabs built using the smarty tabset block.
Title Search Search wiki page titles.
Tracker Displays an input form for tracker submit
Tracker Comments Displays the number of tracker comments
Tracker Filter Filters the items of a tracker, fields are indicated with numeric ids.
Tracker Eintrag-Feld Displays the value of a tracker item field or the wiki text if the value of the field is set or has a value(if itemId not specified, use the itemId of the url or the user tracker).
Tracker List Displays the output of a tracker content, fields are indicated with numeric ids.
Tracker Prefill Displays a button to link to a page with a tracker plugin with prefilled tracker fields.
Transclusion Includes the content of a wiki page and replaces values in the body of the included page. All additional parameters will be replaced. For example %%%title%%% will be replaced with the parameter title in the plugin.
Translated Verweist auf einen übersetzten Inhalt
Userlink function Makes a link to the user information page