@wp, good to know it is possible to set ButtonHeight on ToolBar.. Thanks for let me know..
About Customize Dialog, with RxLib you can call
ToolPanel1.Customize(0); so the popup window shows and you can choose the visible and order of buttons. See Image attached.
Would be great it to have it in ToolBar.. However since ToolPanel already offers it, I dont know it is worth to create a new feature on ToolBar component.. May be who already utilize native ToolBar can give the most apropriate opinion.

Thanks wp!
Renato