I read through the wiki tutorial and it mentions that you should have built an configured template 2209 as a preface to the steps. On 8.10 I don't have that template. Could you please post how to create or gain access to the template you refer to?
I read through your threads and it appears I am having the same issue that you were attempting to resolve some time ago: I add template #4 to devices climate and fill in the room and insteon port, the insteon PLM sees it and enters it into the database but when you rebuild all the orbiters to show that a climate device is there, apparently LMCE goes through and checks all the GSD devices and for some reason doesn't see it in the list and then deletes it. This happened 3 times to me until I read through the threads.
If you have worked out a new template that fixes this problem that would be great!