When you develop your own plugin it can include forms that you have developed.
You can decide in your plugin whether you want your settings in a form you have designed or in the Settings.
There is no shortcut method to open the Smart Client settings.
So, I explain my problem better. I created a button on the toolbar, and I would like a form to open as soon as I click on the button. I would like an example, because I’m trying and I don’t understand how to do it.
I have this:
Public Overrides Sub Activate()
' Here you should put whatever action that should be executed when button is pressed
MessageBox.Show("First toolbar button clicked")
End Sub
mm.. I saw it, but it change color.. so is no ok for me.
with this code:
{
MessageBox.Show("First toolbar button clicked");
}
when I click I see popup mesage.. but I dont know, how I can see popup form..
Other idea? 
Did you try to then exchange the MessageBox with a form of your own making?