Check that you have the Cuis-Smalltalk-UI repository already installed. It comes with several Cuis-Smalltalk packages for GUI building. If not present in your host, clone its repository into the parent directory of your installed Cuis-Smalltalk-Dev system:
cd yourPath/Cuis-Smalltalk-Dev cd .. git clone --depth 1 http://github.com/Cuis-Smalltalk/Cuis-Smalltalk-UI
The repository contents are divided into several packages whose classes are listed for reference on the README page of the repository. In the following chapter, we will install the appropriate package individually when needed.