(tides) work around selecting more then one port(harbour) @ same time

I selected one harbour & uploads of tides, it works fine, but I would show 3 different harbour situations
reason why I would show it:
these are rather different since the peak of great brittaion, (Atlantic ocean) bounces into the northsea
with an gap (ossilations) from the north; hence as tide predictions (manually) show on a distance of 50km,
there is a big time & tide difference
is there any work around possible? eg put everithing in a different directory & upload via seperate ftp upload of WD …
just a tought … nut I need a little script to start/stop each tide prediction (different directory) to generate
a txt file …