[Hexagon]Hexagon 2.2 Query

[RedSquare]

I need some help if anybody is willing. I've made a model out of nine parts, which although saved as separate elements does have some or all of the other eight parts hidden/frozen in the background. As you can imagine, the Mb's are going through the roof.

Although I have just under 850Mb's of free memory left. It appears that Hex 2.2 hiccoughs and freezes me out at or around 1.2Gb's. Obviously, I need to remove the shall I call them the ghost sections that are duplicated.

So, there are two main questions. Is there a relatively streamlined method of removing the ghost elements? At the moment I'm selecting each individual component that I don't require from the scene tree and deleting them, which sometimes needs more than one attempt.

The second question is that with one of a group selected and right clicked you are offered the choice up-to three in some cases of returning to root. Could any one clarify the difference and reason for selecting one or other of these?

I guess basically, that I'm looking for a method to highlight something unwanted in the scene tree and quickly delete it.

[RedSquare]

Well I've sort of found out what the root choices give you. It reduces groups down to a single item, which I can't seem to remove.

[Piem]

mmh..did you tried to drag the item away in the tree ?
You can also select the item and take the weld tool. ( welding with nothing, just hit enter)

[RedSquare]

Thanks Piem, I tried dragging but could not move out of the panel. I could move the item up or down the tree, but what effect under normal circumstances that would have, I have no idea.

I will try your welding suggestion, but I realised that all of the ghost items now left are empty.

[RedSquare]

Deary me, this is taking for ever to remove the unwanted items.