zlovatt wrote: ↑July 26th, 2018, 11:50 am Check this out: http://www.motionscript.com/design-guid ... -sync.html

thank you, I have already solved this problem with this solution.

time =thisComp.duration

linear(time, inPoint, marker.key(1).time, 0, 1) - linear(time, marker.key(2).time, outPoint, 0, 1)

This is the example here： http://youkaze.com/picture/markerkey.png I want to know how to make the same effect like this example, dragging the IN tag on the diagram to change the duration of the effect, there is a keyframe and eval expression on time remap, but I can't understand the expressions in t...