Issues with Expression map

I attached a screenshot (sorry it’s two pages and the first is blank).

I’m trying to use expression maps with keyswitching. On the second lane, Cubase will not let me click/edit in it at all. I downloaded some expression maps from Steinberg for the EW brass and have the same thing, where I see the keyswitch lanes (or separate patches) but Cubase will not let me put anything in any lane but the top one.

What could be causing this? Thanks!
Screenshot.jpg

You might want to post a screenshot of the Expression Map itself so folks can see how that’s setup. Just seeing an empty lane doesn’t offer many clues.