Platformer-RTS strange game

Hi) Im new here and thinkin to make a steam punk game like "Project Nomads" style with your floating island, but in 2D, and give you more freedom and randomness of the gameworld.

But I ran into a great problem, its because I dont know much about using construct yet.

Problem is in the RTS movement behaviour.

Here is my Cap

http://upload.namelezz.net/downloader.php?file=729285_Vortex_Planet_Survival_Guide.cap

Controlls

AD - Left right

Left MB - Jump

Shift - Hold to be in fly mode

Middle MB - Click turrets to activate modes, ALSO when standing on the "wheel and crystal" building you click to fly the whole island towards cursor.

So the issue is that RTS comands that I use to move your Island are ruled by the wideness of the layout, And the island should move anyway forever but it stops at the corners of the layout.

Rts uses path finding so it has to know exactly how big the layout is. In other words it has to know how many x, y points there are to generate its internal map.