Revit LT 2014, Wall Edit Assembly, E column

[gccdesign]

I've noticed that in Revit LT, there is no column for structural in the wall Edit Assembly window.

But I just noticed that if I add a core element, then widen the window, then an "E" column appears. At first the core element that was already there will not have a checkbox in this column. If I check a box for a newly added core element, then a checkbox will appear for the previously existing core element.

I have not found so far any reference to it in the tutorial I'm doing, nor in help.

It will allow only one core element to be checked, similar to if it was the structural column.

So what is this "E" column for? What property does it give an element?

Thanks,

GChapp

[LisaDrago]

That is a pretty good question - when I looked at it - it gave a check box - is this giving one material priority over another?

I am not seeing it respond any different when I use the wall and attache others to it...

Does anyone else have any ideas?

LD