Port Forwarding Setup for BD Box using IOS BD Central App...

I need to open some ports in my BD Box for a PC and found the location to add the Port info using the BD Central App on my iPhone. But the IOS app doesn't appear to allow me to enter a "Range" of numbers, e.g. 27000-27031 There's no way to type in a "hyphen" and it limits the amount of digits I can put in also. I can add multiple entries for certain port numbers but I certainly don't want to have to make 31 entries for others like the example above.

The attached jpeg shows a sample of a range but I can't find out how they did it or if it's even possible. It appears to be a secret! 😀