In general, you really shouldn't create a duplicate for a Behaviour Remote Buddy already ships with. You can always add additional actions to existing Behaviours by selecting "Custom Actions…" in the popup at Prefs > Mapping.

Regarding your issue, I'm not sure whether I understood you correctly, but if I did, here's what might make things clearer:

It's important to distinguish between two different and internally completely separate items in the application:

a) the actions in the Behaviour Construction Kit

b) the actions in compiled and loaded Behaviours, even those you created with the Behaviour Construction Kit

While the actions in a) are available to you in the Behaviour Construction Kit, the actions in b) are not. These are already in compiled form.

If that's not the problem, please send me screenshots illustrating the problem, so that I can understand it better.

Best regards, 
Felix Schwarz