Possible to clone existing Raspbian to a Multiboot?

[pandalatte]

Hello everyone!

So, I'd like to clone my existing Raspbian (only one OS) to another SD with Noobs Multiboot.

Card1: Raspbian Card2: I run NOOBS, select which OSes I'd like to install. Installing LibreELEC and Raspbian.

And then I would run rpi-clone to overwrite Raspbian from Card1 to Card2. While keeping the boot menu and LibreELEC intact.

Is it possible with the standard options? Thanks!