You can create your own toolbars in fckconfig.js which is found here:

/providers/htmleditorproviders/FCK/Custom/fckconfig.js

You already have:

FCKConfig.ToolbarSets["Default"] = [
 ['Source','DocProps','-','Save','NewPage','Preview','-','Templates'],
 ['Cut','Copy','Paste','PasteText','PasteWord','-','Print','SpellCheck'],
 ['Undo','Redo','-','Find','Replace','-','SelectAll','Removeformat'],
 ['form','Checkbox','Radio','TextField','Textarea','Select','Button','ImageButton','HiddenField'],
 '/',
 ['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
 ['OrderedList','UnorderedList','-','Outdent','Indent'],
 ['JustifyLeft','JustifyCenter','JustifyRight','JustifyFull'],
 ['Link','Unlink','Anchor'],
 ['Image','Flash','Table','Rule','Smiley','SpecialChar','PageBreak'],
 '/',
 ['Style','Fontformat','FontName','FontSize'],
 ['TextColor','BGColor'],
 ['FitWindow','-','About']
] ;

FCKConfig.ToolbarSets["DNNDefault"] = [
 ['Source','Preview','-','Templates'],
 ['Cut','Copy','Paste','PasteText','PasteWord','-','Print','SpellCheck'],
 ['Undo','Redo','-','Find','Replace','-','SelectAll','Removeformat'],
 ['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
 ['OrderedList','UnorderedList','-','Outdent','Indent'],
 ['JustifyLeft','JustifyCenter','JustifyRight','JustifyFull'],
 ['Link','Unlink','Anchor'],
 ['Image','Flash','Table','Rule','Smiley','SpecialChar','PageBreak'],
 ['Style','Fontformat'],['FontName','FontSize'],
 ['TextColor','BGColor'],
 ['FitWindow','-','About']
] ;

FCKConfig.ToolbarSets["NoGallery"] = [
 ['Source','Preview','-','Templates'],
 ['Cut','Copy','Paste','PasteText','PasteWord','-','Print','SpellCheck'],
 ['Undo','Redo','-','Find','Replace','-','SelectAll','Removeformat'],
 ['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
 ['OrderedList','UnorderedList','-','Outdent','Indent'],
 ['JustifyLeft','JustifyCenter','JustifyRight','JustifyFull'],
 ['Link','Unlink','Anchor'],
 ['Table','Rule','Smiley','SpecialChar','PageBreak'],
 ['Style','Fontformat'],['FontName','FontSize'],
 ['TextColor','BGColor'],
 ['FitWindow','-','About']
] ;

FCKConfig.ToolbarSets["Basic"] = [
 ['Bold','Italic','-','OrderedList','UnorderedList','-','Link','Unlink','-','About']
] ;

And you can create your own the same way....

I just want to hide the various buttons on the editor

aand depennding on the users choice display them for the user

eg Bold italics undelined indent font formatting are selected

i just want ot show those buttons not all