Help with creation of module

[racoon]

Hi!

The LyX manual on customization has not much explanation. I want to 
create a simple module that inserts a label with "footnotemark" and the 
command \footnotemark in the source.

The LyxType sounds like the right thing to use. But unfortunately, I 
have no idea where I can find this kind of inset. The documentation 
states "Among other things, [LyXType] determines on which menu this 
inset will appear." (46, LyX 2.2) But it does not state where the inset 
will appear.

Best,
Daniel