New zooz wall switches were not added to zwcfg*.xml file

I recently purchased three new ZooZ wall switches. I got the first one added and edited the zwcfg file changing the CommandClass sections for the new node. Today I added the other 2 switches. After the first one was added and listed as “complete” in the node management I added the second switch. The switches are shown in the Node Management and I am able to turn on/off the switches. The issue is that the new nodes are NOT added to the zwcfg file so there is nothing for me to edit as I did for the first node that I entered. Can I just add the missing NODE sections to the zwcfg file manually with Notepad++?

zwcfg_*.xml is a cache file. Why are you editing it?