I'm glad to have found this game, it's good fun so far!
Possible bug, or my own confusion that needs relieving...! On the 3rd scenario I can't place landing pads on any of the other islands. I can place as many as I like on the buildings of my first island (fun to see peeps using them rather than going down to the ground) and didn't have this issue on the second scenario where I could place them on other islands. Playing on Chrome on Win10. Any tips or thoughts?