Change quote sytle for imports

I love that Webstorm will auto add imports for me the problem is it uses double quotes and I need it to be in single quotes. 

so for instance I want

```

import { FormBuilder } from '@angular/forms';

```

instead of 

```

import { FormBuilder } from "@angular/forms"; 

```

And then for other projects, I'll want the opposite. But I don't see where to set this.