These unfortunately CANNOT be collected from the "Dev Room". But of course, if you're here, then you want another way to obtain them without having to actually hunt for them. I don't blame you. So I will provide those codes for said magazines:
Islander's Almanac #1 - xx04EF8B
Islander's Almanac #2 - xx04EF8D
Islander's Almanac #3 - xx04EF8F
Islander's Almanac #4 - xx04EF92
Islander's Almanac #5 - xx04EF94
For me, I replaced the "xx" with 03 because I had all the DLC. If you don't, for money reasons, it would be a different number. Example: "player.placeatme 0204EF8B" would give you the first issue, right at your character's feet. Any questions and/or concerns, leave a friendly comment.