To keep things simple, the requirements will be relatively straightforward to also illustrate that building simple extensions, such as a drop-down list, can be achieved in a short period of time. For the example, the requirements will be as follows:

• Display dimension values in a drop-down list, allowing the user to select one value at a time
• Give the user the ability to specify the chosen field themselves via the property panel
• Implement the ability to also show the frequency of dimension values in the data model
• Implement the setting to turn your drop-down list into read-only