Or...
- go to the utilities section of the blacksmith and download "genied."
- open the program, go to "file, open..."
- click "AoK: TC defaults" and press ok
[it may ask you if you want to back stuff up.]
- go to "tools, unhide all from editor..." [or something like that.]
- do "file, save..." and save IN THE AGE OF KINGS FOLDER, OVER THE PREVIOUS "language_x1_p1.dll" file.
- exit genied and start AoK:TC
now, in the scenario editor you will have hundreds of strange units with strange names (in addition to the normal ones) and in the buildings tab there will be all kinds of sea gate, sea wall, sea tower...
...plus loads of other cool things.
I know this method seems slow compared to the others, but in the long run it might prove better because you are unlocking lots of other neat units at the same time.