Now, you might have noticed that the properties.js file content utilizes a lot of uses properties. These are Qlik's default reusable objects and allow you to quickly add most common properties panel settings to your extensions.

dimensions include the following properties:

• Ability to add/remove dimensions as an array
• Define the dimension or add a calculated dimension
• Dimension label
• Checkbox to include null values
• Dimension limitation options

measures include the following properties:

• Ability to add/remove measures as an array
• Define the measure
• Measure label
• Measure formatting settings

sorting includes the following properties:

• The ability to define the sort order of the dimensions, with multiple options on sort types (numerically, alphabetically)

addons include the following properties:

• Calculation conditions, which specify whether the extension object is calculated based on a condition
• Show/hide zero values

settings provide you with a predefined General tab, which includes the following properties:

• Show/hide titles
• Title, subtitle, footnote
• Show/hide details

It's recommended to use those properties wherever possible to save time when developing your components.