Yes you can copy sequences (and other module data) between patches using An1xEdit. To copy a sequence:
1) Select the source patch so that it is displayed as the current edit patch. 2) Go to the edit menu and select copy. 3) Now select the target patch so that it is the current edit patch. 4) Go to the Sequence view and select one of the controls or notes in the view. 5) Go to the edit menu and select Paste Sequence. 6) Save the edited patch back to the library.