Hi guys,
"There are more possibilities for toolbox customization. Please go to this demo to learn more about toolbox customization API."
the documentation page https://surveyjs.io/Examples/Builder?id=options&theme=winter
the broken link https://surveyjs.io/Examples/%7B%7B%20site.baseurl%20%7D%7D/examples/toolboxcustomization.html
I've fixed it and updated the site.
The correct link is https://surveyjs.io/Examples/Builder/?id=toolboxcustomization
Thanks, Serge
SurveyJS Team