There are alternatives...
1) In the object editor go to file > Export all object data or Export all Ability data. Then, import all data in the new map. One note though: all data is overwritten if you use this method
2) Open the campaign editor (ability data). First copy all 10 abilities to the campaign editor, then open your second map, and copy/paste all abilities from campaign editor to map 2. You still need to copy/paste all abilities individually, but it goes way faster.
3) World Editor Newgen has an object data merger.