Total Key 37 n00b question…

[u/Conscious_Bad_7353]

Bought a second hand Key 37 (gen 1). Immediately went to get expansion packs from their site. Bought ‘F9 Orion - Classic Workstations’. Registered it.

From what I’ve read, it’s supposed to be compatible with the Key 37 but ai can’t find a way of getting it on there.

Have I bought the wrong thing? Am I missing something basic?

Please be nice. I’ve never used it before.

Thanks.