CA Identity Portal: The add and remove button appears in the Access Tree for all target permissions

Document ID : KB000100079
Last Modified Date : 05/09/2018
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Users are seeing the option to add and remove target permissions even when they do not have the access rights to do so. These buttons don't work but they are confusing to end users. 
You can change this behavior by enabling the strict cart mode. In the Admin UI, go to Setup -> Gui Configuration, under the User Related -> General Info tab find the “strict_cart_mode” attribute and change its value to “true”.