how do I resize a partition on external hard drive in 0/S 10.15.7
I have 4 partitions on my HD, the the one was set up to use for expansion of any of the other 3. Since updating to Catalina I can't slide the partition boundaries nor input a new size except on the "last" partition. I need to enlarge my 1st and 2nd (going clockwise from 12 o'clock) and sacrifice space in the "last" partition which is unused. How can I do that?
Thanks in advance
Henry