Mohiomap by default arrange all your notes and files automatically and dynamically. This provides an initial starting point for your to arrange your content.
If you like to fix your nodes in a specific location, you can use the "Pin" functionality and prevent it from moving. This is accessible through the context menu (visible when hovering your mouse over a note, file, etc.), see image below:
Click on a node (which open the context menu) and select the "Pin" option to fix the node. Then, move the node to the location you want. E.g. move it to a position that makes more sense for you, adds additional meaning, etc.
The location will automatically be saved. The next time you log into Mohiomap and navigate to the same view in which you pinned that node, it will be restored to the same locations.
You can unpin the node in a similar fashion. Click on the node (which open the context menu) and select the "Unpin" option to free the node.