Not that I'm aware, though Serge would give you the definite answer. In my experience, Delphi toolbars are really lacking in important features and if you want to have anything other than a standard left aligned toolbar then you're better off doing something custom – for instance, in almost all my apps I use TsBitBtns on a TsPanel, that way I have full control over the buttons. The only caveat I'd add to that is that for my apps I make sure that TsBitBtns use the TOOLBUTTON skin section (SkinData.SkinSection := 'TOOLBUTTON';). Best of luck.
Regards,
Hamilton