A property that was "free" in the node used to create a new node automatically inherits the "free" setting to be preserved inside a user-defined node. As a result, it automatically becomes an option input variable and can be manipulated freely once the new node is used. The default value of the optional parameter is the current value at the time the node is created. These are input fields that appear in blue once the node is used.

In the current state of the model, the Data Type of the slider01 is "double". This means that when the node is used in the future, it will only accept the data type "double", which will later allow for decimals. The Property Name changes accordingly. This is not a necessary step but it will make it easier for multiple users to identify the types of input.