Exploded view, appearance of "Group" folder

Out of category
1

Hello

I'm on SOLIDWORKS 2017. When I want to do an exploded view with automatic spacing, I select my parts and move them in the direction I want. When moving, some parts move without spacing with each other and end up in a "Group" folder under the "Chain" tree.

With a right-click on these parts in this "Group" folder, it is possible to "ungroup and move up/down". But when I do one of these operations, the pieces disappear one after the other until only one remains and the "Group" folder disappears.

Is there a way to remove these "groups" to have a regular spacing between all the initially selected rooms?

Thank you for your help

2

Hello
Is there an experienced user of these groups of parts in the "burst stages" of a chain?
I also have trouble mastering the feature.
 

Thank you for your help.

3

Hello

Sharing files will make it easier for people to help you

Is it a sub-assembly?

Cdlt