Looking for hotkey or shortcut to jump in filter toolbar w/o mouse

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after switching from another window, lets say Excel, or Notepad, to an open wireshark window, what keys can I use to enter in the input field of the filter toolbar to modify existing eth.src==11-22-33-44-55-66 to another value without using or needing the mouse, I can tap the TAB key for 10-12 times, than the focus is there, but that is too much