I am using Extjs 6.2.1 modern toolkit and i am using a list to show some data. I am using deferEmptyText:false for the list. What i want is to show a different emptyText before the store loads and then show different emptyText after the store is loaded. Is there any configuration that will let me do that? I know i can also use setEmptyText() method to set different empty texts, but i am looking for a simple config where i can define 2 different texts.