To change the nested list settings, in /fckg/fckeditor/fckconfig.js, at line 445 you will find the Dokuwiki toolbar set defined.
FCKConfig.ToolbarSets["Dokuwiki"] = [
['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
fckg_nested,
['Rule', 'Smiley', 'SpecialChar', 'Style'], [],['fonts'],
. . . .
Replace
fckg_nested[/m] with [m]['OrderedList','UnorderedList','Outdent','Indent', 'insertHtmlCode']. The final comma in that line is required, so that you should have:
['Bold','Italic','Underline','StrikeThrough','-','Subscript','Superscript'],
['OrderedList','UnorderedList','Outdent','Indent', 'insertHtmlCode'],
['Rule', 'Smiley', 'SpecialChar', 'Style'], [],['fonts'],
I've actually made this the default in ckgedit.
We have no control over the tab in table cells.