New to n4ce 4.30 is a fully customisable toolbar in the 3d View. Below is an example of tools that have been added to it.
Adding and removing tools is simply a matter of using the +/- buttons at the end of the toolbar.
To remove, click on the -, and then on the tool to remove. A trash can will be drawn over the currently highlighted tool, click on it to remove it. Click the - button again to stop the removal process.
To add a tool, click on the +, and then on the appropriate tool in the ribbon bar above. It will then be added to the custom tool bar. Click the + button again to stop the process.