Think in the sheet that will not appear more than one time in the stamped PDF, will be nice too to set the order that the hierarchical sheets appear in the PDF, not just the default by the XY position.
Sometime the better order to understand the project in not the XY. For example, micro-controllers layouts, usually the IC with crystal and so on stay at the center block (hierarchical sheet) and the output and input blocks to right and left (usually we want this central block as second page in the pdf).
Think in the sheet that will not appear more than one time in the stamped PDF, will be nice too to set the order that the hierarchical sheets appear in the PDF, not just the default by the XY position.
Sometime the better order to understand the project in not the XY. For example, micro-controllers layouts, usually the IC with crystal and so on stay at the center block (hierarchical sheet) and the output and input blocks to right and left (usually we want this central block as second page in the pdf).