My problem is how I can add new (created by my self) action to context menu? I made actionpackage but I don't know how to use it. Also, is there good manual for configs? 

To add an action of yourself:

1) Be sure to check the "Globally available" checkbox for your action 
in Action Factory. 
2) Go straight to the menu configuration in Remote Buddy. 
3) Your action is now available from the palette at Actions > 
Miscellaneous

Action packs are primarily a means of storing/backing up/exchanging 
actions. They don't have any relevance beyond that.

Best regards, 
Felix