In Grab mode drag you mouse over all regions and tracks you need to combine. This creates a selection. Then select from menu: Region / Edit / Combine. This will combine regions and space between them into new regions. Make sure all the newly created BIG regions are selected and then hold ctrl and drag the new big regions to another place, this will create a copy of those regions.
You can uncombine selected regions from menu: Region / Edit / UnCombine.
To make more copies of the big regions, first select regions then right click on one and select from menu: Selected Regions / Duplicate / Multi-Duplicate, input the number of copies you want and click the Duplicate button.