There are multiple ways to move Keyframes in Vezér.
Dragging with mouse
You can drag selected Keyframes with your mouse. Hold down the Shift key to force them to move only one direction while dragging.
Move by arrow keys
You can move selected Keyframes with the Arrow keys on your keyboard.
From Vezér 1.5.2, when moving OSC Float Value Keyframes with Up/Down arrow keys, the default movement value is always 1 percent of the Track min/max range.
If you hold down the SHIFT key while moving Keyframes the movement value will be always happening at the last fraction.
Move by editing Time and Value
You can also move selected Keyframes by editing the Time and Value fields of the Active Keyframe. With there method you can use absolute and relative values:
absolute values: type the exact Time or Value you want to move to the Active Keyframe.
Move to 2. mins: 2:00:00
Move to 2. secs: 2:00
Move to 2. frames: 2
Move to value 27: 27
Move to negative value -27: (-27)
relative values: use a sign (+ or -) to move from the current position.
Move by 2 secs: +2:00
Lower the value by 27: -27
Invert
You can invert Keyframes on both Time and Value axis by typing i in the Time or Value field.
Stretch
You can stretch selected Keyframes on the Time axis of selected Track, by holding down the Alt key while dragging the first or last Keyframe.
You need at least 3 selected Keyframes on the same Track to do stretching.