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From the value destination variable, you can choose the variable in which you want to save the value of the field
You can bind the value of the variable to the component by creating an a variable
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Model
From the value destination model, you can choose the specific model in which you can save the value of the field
You can bind a value to the component using a model, value comes from the object that we use while model creation
Please refer Models
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Select Read Only checkbox to display the rating read-only, you can not edit read-only rating
Size
The rating can be displayed in five different sizes e.g xx-small, x-small, small, medium, large
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