Hi @JamesSnaps :
I've made a test for your reference:
1\I assume there is a collection named DateRange
ClearCollect(
DateRange,
ForAll(
Sequence(DateDiff(Date(2020,11,14),Date(2021,2,11),Days),0,1),
{TheDate:DateAdd(Date(2020,11,14),Value,Days)}
)
)

2\Add a date table control and set it's Items property to:
ForAll(
Distinct(
ForAll(
DateRange,
{
TheValue: Text(
TheDate,
"[$-en]mmmm"
) & ";;" & Year(TheDate)
}
),
TheValue
),
{
TheMonth: First(
Split(
Result,
";;"
)
).Result,
TheYear: Last(
Split(
Result,
";;"
)
).Result
}
)

Best Regards,
Bof