[TYPO3] Auto-move elements in a TemplaVoila setup

[Johnny S.]

Hello list

I'm a trying to make a backend-extension, where it is possible to 
"auto-move" some tt_content-elements from one TemplaVoila field to another. 
But I cannot figure out, how to do this.

I have also done some testing with TCEmain on how to create pages and 
tt_content-element. This is working fine, and the pages and elements are 
both accessible from the backend, but every tt_content-element are placed in 
the first column in the TemplaVoila-setup.

I have used this code, to ie. change the header of an element:
$tce_data['tt_content'][100] = array('header' => 'test');
I would think, it should be possible to move an element from one 
TemplaVoila-field to another aswell, since it is possible manually in the 
backend by clicking some icons.

Any help or suggestion?

JS