[Typo3] Hide some buttons

[tapio]

Hi

Is there some TypoScript to hide some buttons in the content editing
view?
I added to alt_doc.php extra classes for each button to get full control
to these button.

For example

				if ($undoButton) {
					$aOnClick = 
'document.location=\'show_rechis.php?element='.rawurlencode($this->firstEl['table'].':'.$this->firstEl['uid']).'&revert=ALL_FIELDS&sumUp=-1&returnUrl='.rawurlencode($this->R_URI).'\'; 
return false;';
					$panel.= '<a class="undodoc" href="#" 
onclick="'.htmlspecialchars($aOnClick).'">'.
						 
'<img'.t3lib_iconWorks::skinImg($this->doc->backPath,'gfx/undo.gif','width="21" 
height="16"').' class="c-inputButton undodoc" 
title="'.htmlspecialchars(sprintf($LANG->getLL('undoLastChange'),t3lib_BEfunc::calcAge(time()-$undoButtonR['tstamp'],$LANG->sL('LLL:EXT:lang/locallang_core.php:labels.minutesHoursDaysYears')))).'" 
alt="" />'.
							'</a>';
				}
This is in normal usage quite useless can could be hided.
Hiding this with CSS is not the best way because this feature can't be 
tailored for each user.
User/User group TypoScipt config would be the best way to control all 
kind of buttons.
In general it would be nice, if ALL buttons could be customized.