power connector board redesign

We have a 4-layer board designed in Altium Designer which contains 4 different power input connector and go to multiple output connectors. We need to increase the number of output connectors from 25 to 30, rearranging the connectors assigned to every power voltage and adding an additional input voltage and connector. It is also necessary to replace a dc-dc converter by a different one (already decided) due to stock shortage.