
Originally Posted by
Jakeler
Like I said, if these watchtowers could be placed via scripts then I could create such a feature. However it is done via descr_strat (in: ...\Medieval II Total War\mods\3.0_Baron\data\world\maps\campaign\imperial_campaign). Just use control+f to search for ''watchtower'' and you will find the watchtowers which are currently present in vanila (there are a couple of them):
It is really simple to create them. Just place your cursor on your map where you want the watchtower, type: ''show_cursorstat'' to find the coordinates (x and y). Create a new watchtower entry in descr_strat.txt with your coordinates. Thats all there is to it. 
Edit: So in conclusion there is no such thing as an ''option''. You either will have them or not.