Thanks Eduardo. Setting top and bottom margin works for both all the gab between cells, except for the first and last cell. The first cell will only have top margin of 4, and the last cell will only have bottom margin of 4.
Try switching to Kotlin, it is really a nice language other than being the trend. https://firstname.lastname@example.org/why-you-should-totally-switch-to-kotlin-c7bbde9e10d5.