This can be useful when setting up a Consolidated Group, you can copy an existing account tree, choose the one that is closest to your structure requirements as a starting point.
In Calxa, navigate to:
Reports > Report Tools > Account Trees
Select the tree you want from the dropdown list
Select the tree again to show the cog to the right
Click the cog and choose Copy Tree
Give your Tree a new name to make it easily identifiable in the Report Settings
Tick the box to Automatically allocate accounts.
Click COPY TREE
Then you will need to map the Accounts from the other organisations into the Headers of this new Tree.