am i missing zoom features?

i'm on the latest lightroom cc on mac mojave. i've never used lightroom before.

the zoom features i see are fit, fill, and 1:1. command+ and command- zoom to extremes. everywhere i search shows me that light room has additional ratios next to the 1:1 button, but i don't see that on my screen. i tried right clicking it too and nothin.

how do i control zoom accurately. 1:1 is too small, fit and fill is way too big. command + - offers nothing in between

actually just realized command+ -, just cycles through the 3 useless zooms. this is frustrating as f