You can get this attribute instance through GetAttribute in 4. ASAttributeSystemComponent .
Modify the attribute value through the modifier. This is the same as the modify attribute function of the attribute value!
Converts the property value to text. This generates a text value (FText) based on the content configured in the property data asset.
Used to check whether this attribute is a primary attribute (first-level attribute)
Used to check whether this attribute is a base attribute (secondary attribute)