When desoldering and removing the OEM LEDs, make sure to leave one soldered in place to use as a height reference.

I replaced the "Low" LED first. It's the only one on the PCB that doesn't have a surface mount capacitor.

When removing the "High" and "Medium" LEDs be careful not to loose the capacitor. These are highlighted in red. It is possible to do this without removing it from the PCB as shown in Photo 2. Just reapply solder if needed.

Repeat until all 3, or the desired number, of LEDs are replaced.