Thanks Julien! I edited above to note that some of the 2.4e boards come with the pins already in place:
EDIT: some 2.4e boards come with the header pins in place (lucky you if so!), see this post.
And found your post on the ISP header for with the pin out for the 2.4d board, which is likely the same as the 2.4e.
I haven’t validated this, but looks like you can get to the same pins here without needing to pull your board and solder if your missing the pins at the top right. Interested to know if anyone has used these.