How to setup kdump on Sles 12sp4

To setup kdump can I just go into yast and turn it on, or do I then need to use kexec load the kdump kernel? The docs have me a bit confused since I have never used this functionality before.

I am looking at : https://documentation.suse.com/sles/12-SP4/single-html/SLES-tuning/?&_ga=2.237612032.1683230075.1582552609-1560122876.1581622117#cha-tuning-kexec

Thanks,
Matt