You might create a subclass of UIViewController
(MyRegularViewController) and assign a .xib by (MyRegularViewController.xib)
File > New > File > User Interface > Empty
and drag a UIViewController
to your emtpy xib file. Associate your MyRegularViewController with that xib, then customize it.
Now you can use it anywhere you want simply like this;
MyRegularViewController *regular = [[MyRegularViewController alloc] initWithNibName:@"MyRegularViewController" bundle:nil];
self.navigationController pushViewController:regular animated:YES];
You are not obligated to use storyboard in all cases, in fact using your storyboard for something like this situation will mess your storyboard. Simply use a xib and a custom class for this.