Yes it is possible to use the ODD drive bay with an SSD drive, but why do it such a way when you can have SSD as your primary drive (OS & Apps only) then store your data on a HDD instead ?

SSD is more faster than HDD thus having SSD as your primary (OS) drive will significantly improve the speed & performance of your notebook.

I'm not sure whether Low Yat have such caddy available but you can search for it.

My suggestions is to replace the existing HDD with SSD instead, a fresh install might be required. Then buy an ODD caddy drive bay to install your existing HDD and make it as your data storage.

Though you will be sacrificing the ODD & might be troublesome should in the event you need to access/read from a disc which your notebook doesn't have the drive for it.