Record (last/)position and overwrite with next position

[Wodjanoi]

I need suggestions on how to do this effectively. I have a camera object that moves to the next position when a new area begins and if the player go back to the last area he was coming from, the camera moves back to old position. The moving distance for vertical or horizontal movement is different but always the same.
This is the final event I need:
If camera position x or y is greater than last camera position + 100(example value)then - Event(destroy all Qualifier 1 objects for example).

[casleziro]

room to room example.mfa

If I understand what you want, this should work without saving/loading anything.

[Wodjanoi]

No sorry - scrolling with camera movement is already done.

eximg1.png
Every time the camera moves to the next position in a new room I need the previous camera position(it should update every time the camera moves into the next room)
to make Events with the distance of x or y position of the previous camera position in relation to x or y position of the next(new current) camera position.