It comes with a crank handle on a long shaft that engages with the height adjustment on the router. You have to remove a long spring from one of the tubes, but it has a threaded top on that tube so It's easy and quick. Be sure to save the spring in a safe place.
It has a lever to lock it at whatever height you set. You can also crank it all the way up to change bits. It turns the power switch off, and locks the spindle. It also has a pushbutton spindle lock in case you want to retain the height setting when using matched bits.
Several companies make matched bits, which are set up so that you can drop each bit in the set into the collet and the cut will align perfectly. To make that work you drop a 1/2 inch GROMMET (not an O ring) into the collet so the bit set always bottoms out on the grommet.
With the spindle lock lever set, the bit will stay in alignment. This is really nice for making face frames with different profiles. My door sets are all from Marc Sommerfeld, but a few other makers produce matched sets, including Freud. Sommerfeld makes a set of star EasySets (see pix) for both his and the freud matched door sets. These are terrific for setting that first, crucial bit height because they adjust to the thickness of the workpiece. They are brilliant and work with all door sets from the two makers. Yellow for Sommerfeld, red for Freud.
Sommerfeld has a lot of youtube videos on cabinet building using the Triton. It includes elegantly simple ways of working with a table router.