Hi and welcome to the community,
1. You can add buttons in the skin editor: Project Set-up > Skins. How do you want to open the external URL address? Do you want a popup or do you want the page to open in the topic pane?
Thanks Willam. This is helpful information. One more question in my mind. Can we change the framesets in .skn file. If it is possible then how can we change it.
I want 20px space/margin between the toolbar buttons and the "About" aligned to left.
1. How we can add margins between the buttons in toolbar pane.
2. How to show the logo "About" aligned left side of the toolbar pane.
You can change the .skn file with notepad, but I'm not sure what will be retained in the output.
For all skin related questions, check Rick Stone's Skinny on Skins: http://www.robowizard.com/RoboWizard/NewProject.htm#Downloads/Skinny_on_Skins.htm
I don't know whether your questions are answered in skinny on skins, so post back if you don't find the solution in there.
"Rick Stone's Skinny on Skins link" solved my most problems.
Thanks & Regards,