The pitch transition and vibrato settings in Note Properties panel are meant for quickly setting up a rough pitch outline. Works on the details are expected to be carried out via Parameter Panel.
Pitch transition controls the part of pitch curve near note boundaries. Vibrato applies to the middle of a note. These properties are best explained in the following diagram.
Other Vibrato Properties
Phase. The phase of the sine-wave-like vibrato at its beginning, relative to a full cycle.
Frequency. How fast the vibrato oscillates (cycles per second).
Jitter. How much natural pitch fluctuation is added to the pitch curve.
