Tank lengths increase by quite a big step, is it possible to add only half of what is added per step at the moment?

Will be implemented with the upcoming re-work of the custom fuel tanks. I have added half-step sizes in-between all existing tank sizes (including a half-height variant of the currently smallest tank).

Models are already done/exported, just need to finish up the rest of the plugin code to allow them to be used.

You should see this feature with the next full/scheduled update.

Thank you.

Rolling into #74