I want to insert a row and add a unique ID to a table I already have a ID in Col H to which I want to add AA, AB, AC etc, then repeated for the next group. so something like this
BEFORE:
WTL-006-033-4
WTL-006-033-4
WTL-006-033-4
SFC-006-113-4
SFC-006-113-4
AFTER
WTL-006-033-4-AA
WTL-006-033-4-AB
WTL-006-033-4-AC
SFC-006-113-4-AA
SFC-006-113-4-AB
BEFORE:
WTL-006-033-4
WTL-006-033-4
WTL-006-033-4
SFC-006-113-4
SFC-006-113-4
AFTER
WTL-006-033-4-AA
WTL-006-033-4-AB
WTL-006-033-4-AC
SFC-006-113-4-AA
SFC-006-113-4-AB