I feel really.. yucky with the new UI. Of course it's a good UI, but it's just not for me. I just thought it'd be a good idea if we had the option to change our UI. Maybe there is a way already, and I'm just a little numb in the brain. If there is, I'd really appreciate it if someone would point me in the right direction.

When you say "Old UI" Do you mean the old CB bars? or just the look of it entirely?, Either way, if you wanna change the UI, You'll need to either mod it using the source code, or just change the textures used in it.

How am I meant to put items in cabinets if I can no longer go into character mode in the submarine editor?

Hello! Your questions about "what to do now that there is no more character mode" will hopefully be answered by this brief developer guide: https://kosblue.com/subeditor/

As for the rest of the UI, we hope the addition of the new contextual commands plus the inventory improvements that are still coming will make it grow on you, if you still haven't taken a liking to the new look