Android Helo buildings

[Tommy]

I have gold starred all the preliminary flights. I want to stop dropping coins into the helos for a while but cant store the buildings...any ideas?

Thanks
Tommy

 

[Trybat]

I tried to do the same but I think because some of the buildings are given to you as you complete the heli-tasks, they won’t let you store or sell them.

 

[Tommy]

I'm having to agree with you. Just taking up space now. And I need to but 2 major expansions . Because I want to build the 1st launch pad

Thanks
Tommy