How to zoom through the levels?

I wouldn’t do this just yet. You’re still lvl 1. There’s not much reordering needing to happen, if any at all.

I would suggest you to highly focus on learning how WaniKani itself works first. That will give you knowledge to make better decisions in the future. If you haven’t yet, read the FAQ and Guide. Around lvl 5 or 6, you can then start looking up for extra stuff like userscripts (things made by users to improve WK’s system)

Here’s how you get the reorder option:

How to: Visual Guide on How To Install A Userscript

Script: Wanikani Reorder Ultimate [old version, not working]