I have added IR devices to the plugin by cut and past from the iLearn utility.
I have 9 Learned IR codes entered into the plugin, but only 6 and the STOP_IR show up in the dropdown in HStouch designer. If I restart HS I get all 9.

Hometroller-SE PRO 2.5.0.58
Designer 1.0.73
Plugin - Trial version

Tom