With the ECC v2 to my knowledge, this functionality is not possible (in term of renaming the "Task" to something else...)
Although it appear with the ECC v11.2 it does allow the tab to display your "Custom Filter" name instead of just "TASK"
(In this screenshot, I did a custom filter as and saved it as TEST_Name_LUL and use that filter. Which then the Tab, will use that the custom filter name, so if you have multiple tab, it will be more informative then how it previously operate within ECC v2).
Please also note that with ECC v11.2 it will require AE v11.2 and above
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