You convert multiple items to a single group and then easily move this group on your worksheet. To group items simply select them, open the right-click context menu and click on the Group command. You will find the command for release the group in the same context menu:

Limitations
Group have multiple limitations compared to the single items:
Scaling |
Scaling a group is only possible if the group contains images and scalable forms only |
Rotating |
A group is rotatable if all its contained items are rotatable as well |
Editing items inside a group |
Once you grouped items you can't edit their properties anymore. If you want to edit the inner items you will first need to release the group. |
Groups inside groups |
Placing groups inside groups is not supported |
Properties |
The properties of the contained items are not available on the group item. If you want to edit a property of a contained item you will first need to release the group |
Self control |
A self control item inside a group can only reference exercises inside a group. And similar: self control items outside a group an only reference exercise items outside the group. |
For grouped items you can edit the boardwork interactions in one go. On grouping the interactions from the topmost item are applied to the group. When you ungroup the items, their previous interactions are restored.
Click here to learn more on Creating Boardwork.