I'm not familiar with the terminology of "calc table", but are you just trying to create a table similar to this?:

heading1             heading2
----------           ------------
data1                data2
data3                data4

You can use the [ code ] [ /code] tags:

(bracket[)code(]bracket)

heading1             heading2
----------           ------------
data1                data2
data3                data4

(bracket[)/code(]bracket)

using only the actual open/close brackets, to align text into columns.

You'll find it easier to assemble the text in notepad or some other editor using a fixed-width font, like Courier. Otherwise, the proportional font in the forum editor will cause hair loss.

Hello Sekerob,
thank you for the answer. Got no time to try it out right now, but later I will.
Greetings
Martin

[ bracket] bla bla bla [bracket]

Martin,

Don't follow, [bracket] is not the bbcode valid on WCG, it's [ code] (sans space inside the square brackets). If you do a Quote reply on piroque's post you see the format where it's display with 3 columns. Works most of the time. [ list] as in an automated multicolumn bullet pointed tables, is not possible in this forum software, so most (me) use the copy paste from for instance a spreadsheet and encapsulate in [ code] to maintain the column alignment, sometimes needing insert remove of spaces for the finishing touch. This post http://www.worldcommunitygrid.org/forums/wcg/...29975_lastpage,yes#297525 has an example of how that looks.

On top of the Text Formatting Toolbar, I often use the Firefox "It's all Text" addon. A little button "edit" appears bottom right of the writing area, and if clicked opens the post text in your favored Wordpad (notepad, gedit, whatever defined) or when right clicked asks in what format the text should be edited in inside the editor such as css, html, txt, xml etc. When then in the editor hitting the save button, the text is copied back into the forum post writing area.

cheers

OK, cannot be done. What you can is turn the table into an image like SNURK does with the sigs. Images in posts update.

I've got OO on Windows and Linux... just very rarely use... some of the X-Mas/Easter Bunny challenge sheets I've published might still be lurking on the forums with conditional formatting and other bells.