Hi,
Ronald is right, there is no way of customizing the toolbar. However, there is an idea in the idea section of the forums which is all about custom plugins ;)
https://forum.mendix.com/link/ideas/2003
Sorry changing the toolbar of studio pro is not possible.. But what do you mean by just like the picture below? Because that toolbar is the standard toolbar of Mx studio pro. Or am I missing your point?
Regards,
Ronald
Thank you very much!
You get the point right!