Help & Tips

For page specific messages
For page author info

For viewing long pages, you may use F11 function key for full-screen mode. You may also use zoom-in (Ctrl & +), zoom-out (Ctrl & -) and reset zoom to default (Ctrl & 0).  

Links and Buttons

Clicking a link/button will load the linked page in -
1. the same browser window,
2. in a new browser window/tab,
3. in a modal window, or
4. might just pop up a message box
Buttons are mostly used to submit some data (e.g, content or comment)

Modal & Popup Windows

Modal & popup windows are ways to show you a new page without moving (navigating) away from the page opened in the current browser window/tab.

Some links and buttons on an opened page might load the next requested page in a box ("modal window") in the foreground. The page content is covered by a partially transparent gray layer making the content  inaccessible (to mouse) until the modal window is closed.


No Signup Required

  • You do not need to login to experiment with authoring tools, to explore content authoring templates and to browse/search content.
  • To participate in discussion forums and to post comments, however, you'll have to signup and login.
  • Logged in users can manage their workspace and use internal messaging system for communication. They can additionally apply for blogging or authoring privileges.

Email issue

Your mail filter might take 0space mails as spam. Check SPAM mail folder and change settings if desirable.

Changing username

Edit your profile and change your username ( = display name)!

Hidden right sidebar

Right sidebar is collapsed for your convenience on some pages. Click the vertical light brown bar near right top to toggle it.


You need to have additional privilege(s). Use "Get additional privilege(s) link in right sidebar (which may be collapsed/hidden).


A sharable page has a Share button/link near bottom left. This allows you to share content in various ways.

Sharing has whatsapp also as an option, which works for browsers in mobile!
Tips for sharing via whatsapp from desktop browsers -

  • Firefox - If you are redirected to "whatsapp://send/?text=xxxxxx" with an error, replace "whatsapp://" by "" so that the address (URL) in the location box looks like ""
  • Chrome - If it fails and the page has a URL like "", replace the word "api" with "web".
Help - Editor, File Manager and User Privileges

Content Editor File Manager User Privileges


  • In the HTML editor, Enter key inserts a new paragraph and soft Enter (Shift+Enter key) inserts a line-break.
  • While editing La/TeX code of mathematical expressions, always use Shift+Enter for newline (if you need to make the code more readable).


[Important: Check detailed help for Text formats. ]

Content creation and editing is made simple by providing templates for various content types available @0space. Text in the input boxes provided in the templates can be formatted visually.

Templates are web-based forms consisting of sections or tabs for adding content, file attachments and internal or external links.

The forms will have input boxes (like Title, Body) for typing in relevant data. Some of the Text input boxes may offer you a Text formats selector to select Plain text or Full HTML from the drop-down options list.

Select Full HTML if you need formatted text. In Full HTML mode, using the buttons in the toolbar of the What-You-See-Is-What-You-Get (WYSIWYG) editor, you can easily format paragraphs, color text or background, create list, insert tables, images or Youtube videos, for example.

Preview button in the editor toolbar (icon with a magnifying glass) can be used to ensure desired formatting of content and mathematical expressions.

[This useful guide explains the features and the toolbar of the TinyMCE HTML editor.]

Tabs, embedding, popups

Important: Never forget the following while inserting Tabs/Accordion -

  1. Markup tags [tabs], [/tabs], [accordion] and [/accordion] must be in their own paragraphs separate from the the content (= Tab title and Tab text) for correponding tabs or accordion.
  2. Pressing Enter alone insert a new paragraph at cursor location. Pressing Enter with Shift key pressed down inserts a line-break (not a new paragraph).
  3. Tab (or accordion) titles must be in a separate paragraph formatted as 'Header 3' (not 'Paragraph').
  4. In case, you are not getting them right, clean up the formatting completely and start again by firstly ensuring that all tab or accordion titles are in separate paragraps. Often we copy-paste, highlight or change color of the tab (or accordion) title. That might add things and these may not remain in their separate paragraphs. Cleaning up HTML formatting and re-formatting saves time and from frustration!

To insert Tabs, Accordion, IFRAME (with internal or external URLs loaded in them), existing content Node, use the markup tags and notations as given below: [See Detailed Compose Tips.]

  • Type the following text in content to create tabs (Don't copy-paste!)-


Title 1 (with <h3> header tag)

Text body 1 ...

Title 2 (with <h3> header tag)

Text body 2 ...


  • Use the word "accordion" in place of the word "tabs" in the above example to create an accordion (NOT accordions).
  • IFRAME is a way to embed content. For inserting an IFRAME with url as source, use

[[[<url> width=<w> height=<h> scrolling=<yes|no|auto>]]]

(replace strings within '<' and '>' by appropriate values.)

  • To make a link open in a modal popup box, set class (in Insert/Edit Link dialogbox, Advanced tab) to 'pop' (without quotes).

Note that web page addresses and e-mail addresses turn into links automatically.


No nesting allowed for tabs and accordion, that is, you can't have tabs within tabs, or accordion within accordion.

If you need accordion within accordion, use Basic multi-step page type and put accordion (not tabs) inside steps.


For allowing you to insert mathematical symbols/expressions/equations in your content, this site uses La/TeX, which is rendered on your pages using MathJax. See this La/TeX help. Using La/TeX syntax, you can also achieve equation formatting, numbering, and referencing.

Remember to use "soft linebreak" [Shift+Enter] to break lines within "$" delimited expressions. "Hard linebreak" [Enter key] inserts an HTML paragraph element (<p>) and breaks the mathmode started by "$".

Also, NO '$' delimiter needed in equation reference - use "\ref{ref1}".

Help - Path diagram
Help: Search

Site search index is updated every 3 hrs. Any new content/item will appear in search results after about 3 hrs.

Search key (your search string): must be an alpha-numeric string (consisting od 'a-z' or 'A-Z' or '0-9') of minimum 3 characters.
Hyphen and single quotes are ignored (just deleted). Other non-alpha-numeric characters are replaced by blank spaces.
Search is case-neutral (uppercase = lowercase).

Multiple search keys: simply type multiple strings as search key for results containing all keys, AND is the default behavior.

Search result lists all documents that contain the search key as a substring. Title and snippet of content is displyed.

Some result items may be accessible only to logged in users. Some others might be private to author or might require more privilege.

Exclude node summary :