How to set win + E shortcut for dolphin file browser

I have installed Dolphin file browser(dolphin 18.12.3) on plasma(5.15.2) (ArchLinux). I would like to know how to set win + E (meta + E) shortcut to launch Dolphin browser. I already tried setting it as shortcut in System Settings->Global Shortcuts->Application Launchers. But shortcut is not working as expected. Is there an other way to set it up? Any help is appreciated! Thanks.

Solution

right-click launcher/start button in panel
select Edit Applications, the KDE Menu Editor opens
find Dolphin in System folder in the tree view and select it
switch to Advanced tab
click on the None button for Current shortcut key to record a different key
hit Meta+E keys, it should appear in the button
click Save in toolbar and done!