Install OpenSuse to pendrive

I am currently running Puppy Linux from a pendrive.

I would like to install OpenSuse to a pendrive.

In the past I installed using the Windows environment.

In looking thru my choices in Puppy, I see that it offers to install Puppy but not another .iso.

Is there something I overlooked ?

Thanks.

Later I would like to install OpenSuse to a second hard drive partition that is empty and has no O.S. on it.