To create a new Web UI application, make sure you first have a system (see How to Create a System). Then select the system in the Project tree, right-click, select Add New... and select CDP Application in the dialog that pops up, then click 'Choose...'.

When choosing Type of Application, choose WebUI in the list of application types:

After the wizard is finished, Design mode becomes enabled, and you can start creating your GUI as described in Design mode manual.

Once the GUI is ready and you want to run it in a web browser, do the following:

When the application is running and connected, click on the application in Configure mode Project tree and choose the Table Editor tab. Go to the Properties section, find the property called WebURL. This is the link for the web browser. You can also open the browser directly by clicking the icon next to the url. Note that there is a WebFilesToServe property in the application configuration that must list all files and folders that should be accessible in the web browser. If the WebFilesToServe is not set up correctly, then the web browser might not show the content correctly, or it might not function correctly.