Thanks to you both. I went ahead and called RC. For whatever reason the ones classed as connecting (showing in light orange) hold two people each. The many others that simply have arrows are the same as any other 3/4 occupancy, etc and just happen to connect. Doesn't make much sense but I understand now.
Sunshine3601 thank you for the other suggestions. We've always cruised in the same cabin with our two grandson/cousin boys and we're ready to have more space and privacy, and the extra bathroom. DH wants his balcony, and his balcony he shall have. So there we are. As long as I'm not running around a theme park all day, I'd be happy with anything.