hi this is testing events you want to move a category, then select the subordinate category where you want to move below the current category. If a Subcategory is to serve in the future as main category, then select "Main Category" option.
Advice: On save operation, the current directory is shifted automatically on the server. If the shifted category contains Subcategries, they are also shifted. In order to be safe with the internal operations, ALL other categories currently under modifications are closed at category edit time!