However if someone had to do certain ones under current conditions one could draw a rectangle on one artboard then command copy the rectangle and either go from one artboard to the next that they needed changed and paste in place then selct all of thi=ose rectagles and go to Object>Artboards>Convert to Artboards Or draw one rectangle on one artboard and then copy and paste on all artboards and the deselect the ones you don't need with the command control click anthen convert the remaining selected to artboards then you use the artboard panel to delete the olderr version of the artboards. The use the pnel to rearrange the artboards which will renumber the boards and respace them as well.