How to adjust the POSITION of all clips to a certain value?

Image:

I selected one clip (or item) in the timeline, changed its position. Then did a "SELECT ALL -> .." And searched for "SAVE PRESET"

But the save preset button stayed GRAYED OUT. I only changed the position.

I then Tried to change the position inside an ANIMATION, meaning I created a "time item" you know the little "watch" icon for animations.

Save preset still does not exist.

Ok then I tried to select ALL the items in V1 line, and "effect controls" tab HID. You cannot change the position of all the selected items at once.

SO HOW DO I CHANGE THEIR POSITIONS ALL AT ONCE???