Please advise

AddColumns(
GroupBy(TimeEntries, "Project", "Entries"),
"TotalHours", Sum(Entries, Hours)
)
AddColumns(
GroupBy(TimeEntries, "Person", "Entries"),
"TotalHours", Sum(Entries, Hours)
)
AddColumns(
GroupBy(TimeEntries, "ActivityType", "Entries"),
"TotalHours", Sum(Entries, Hours)
)