Node or part of infinite width

Using “Static Parts” i make the nodes static, i.e now node is not moving at all.

But, after making this node static, if i want to make it scroll vertically only, how can i achieve this?

Currently, i am using “Diagram.grid” for creating timeline as in this topic:

So, how can i use “Diagram.grid” for this kind of node (Vertical scroll only).

OR, Is it possible to have a HORIZONTAL LINE of INFINITE Length?