Ship terraforming/ship digging

i did buy founder package and wanted to plan on crater map , but i ran into problem when i was extending island , i cant build docks becouse "rocks i dumped made uneven slope at sea for some reason in some places" and obviously i cant fix it so that part of island for whatever reason is not dockable
there are also rocks in some places , also undockable , around world there are ships who "mine rocks/dig channels as well just skim surface and make docks passable(as sand/dirt moves around , if they have not done it docks would eventualy fillup to point of ships not able to ender it) to give players option to terraform whats covered in water , i ran into similar problem on other saves but was way smaller problem then on this map
as this also would fix problems if we messup dump order into sea

I second this. While I don't mind dumping a huge amount of stuff around a beach to get all the sand, it would be nicer to just use something like a ship for it.
But my main reason is for building canals and getting rid of prior dumped "connecting dams to islands" :D

I like this Idea, i think the same one of the most Problem by Sand is the Water, it will be nicer if i can build a Dock and like the Bagger i can Build a Ship with Transport Modul that can dig in water and bring it back to the Dock. So that i can extract all ressources also out of the Land. This will be also more Options for new Maps with water or deep sea ressources.