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Adding entry to Windows 10 boot menu

I have a laptop with a main SSD drive with Windows 10 (Disco 2 in the below screenshot) and a secondary hdd drive placed in a hdd optical drive caddy (Disco 1 in the below screenshot):

enter image description here

“Disco 3” is an external hdd drive containing a Linux OS and connected to the laptop via USB.

As you can see in “Disco 1”, there is an unassigned space with a size of 322.9GB.
In that unassigned space I want to clone the entire “Disco 3” which its capacity 298.09GB is less than the unassigned space (322.9GB) and mark the EFI partition as active.

Once cloned I want to add an entry to Windows 10 boot menu that points to that EFI partition in order that when I select this entry I can boot into Linux OS. If no selection is performed, then the default OS will be boot (in this case Windows 10).

I know there is the bcdedit command but I do not know how to do this.

Any help will be highly appreciated. I do not want to use any boot loader third party.