Hi Gil,
I am beginning to understand ....(sorry that it has taken this long

).
you are right - this is not the same as what we are currently used to in copying and pasting stuff from Excel , Word tables , LSP , where one selects the content of the grid that is highlighted.
So accordingly, I will adjust my thinking when pasting...
What should happen in the scenario where you have effects at a node level , but when collapsed nothing can be seen at the model level. If you copy at the model level (when collapsed) and paste (when collapsed), should it copy all the underlying node data ?
In my example, that you had today (with the blue and white squares), if you copied 4 secs at the model level and pasted it (at the model level) 10 secs away - should the entire underlying check effects be copied and pasted ?
I can send some screen shots if my question is not clear.