Creating a workable path in the Editor works just fine.
In my program I now and then remove or just move objects,
which leads to a path that has 'non-walkable' areas where the removed
objects has been.

Is there a way to either recalculate the world path or maybe the area where
the removed object was placed, or in some cases where a new object has been
introduced.

PathObstacle gets removed/added as they are created, would that work?

Thanks for the hint. Actually after some thinking I realized that I looked at the problem wrong way, again!!

The correct way seems to be set the objects I need to move, remove and restore to be ignored by Path algorithm.
Collision detection will take care of the player not walking through them anyway.

However I got at look at PathObstacles which may become handy later on.

Thanks.