apple motion and speed ramping

There are two different ways to handle this.

What you're looking for is the Timing controls, which are typically "hidden" by default.

Select your clip in the Layers List and go to the Properties tab. All the way at the bottom you should see "Timing". It looks like there's nothing there, but you need to **mouse over** the Timing title bar and you will see "Show":

Click on that to reveal the Timing controls.

In order to keyframe the timing of frames, you need to select the following:

Once selected, keyframing is possible:

And looping is available with End Condition:

However, all that said, this is NOT how I would handle retiming/ramping/looping clips.

It is much easier to actually Replicate the clip, then set the "Shape" parameter to Point.

In the Cell Controls, turn off Play Frames and now your clip is under the complete control of a single slider parameter: Source Start Frame.

The Maximum (useful) value of Source Start Frame will be *the total number of frames* of the replicated clip.

Source Start Frame can be put under behavior controls so, depending on the method you choose, aspects like easing (in, out, or both) acceleration/deceleration, etc., will be available. You can even "tie" the animation to effects applied to "Null object" and linking whatever parameter that animated to the Source Start Frame!

The total length of any speed manipulations you apply will be determined by the length of the Replicator and not the original clip... which means that the replicator can be any length (of your choice) longer than the clip (slow mo/looping/etc.) or much shorter (speed ramping/etc.). [Don't forget to reset the project length to the length of the Replicator.]

Don't be so quick to go running back to After Effects (and its subscription). There is very little AE can do that Motion cannot.

but for some one new in apple motion this doesn't make any sense at all

really replicator to control speed ramping !!

It's just a different method I prefer to use.

The Motion designed method would be to use the Behaviors > Retiming > Scrub behavior. I would recommend adding the Frame Offset slider to a Rig since the slider maxes out at -100/+100 frames and you can set the Rig to go from 0 to maxFrames in the 0-100 space (as a %).

but the question is why no one with all these youtubers they call them self apple motion expert never spoke about it ??

that is only mean that these people really nothing but BS ??!!

The most popular youtubers are the ones with an onscreen personality and they know how to get around in Motion... but that doesn't make them experts. They're making money on YouTube being loud and entertaining... and popular. Most of them have "good general knowledge".

how come they never used speed ramping and they call them self Professionals

there is no even one youtube video about speed ramping in apple motion

like WTF ???

Ramping is not really a common practice. Most videos are just cut clips with cross-fades slapped on and pre-packaged titles and effects with no real "personal" editorial vision going into them. Speed ramping takes time and effort...

https://www.youtube.com/watch?v=dnG0tL7-Kpc

Apple made this super easy in FCPX but they tend to neglect Motion a lot, and re-timing in Motion is, yes, a royal pain. Sorry...

Yep... that's about it. And yes, AE can do TONS that Motion can't, lets be totally honest.