HI @BrianHFASPS ,
Do you want to select multiple dates once time within the DatePicker control?
If you want to select multiple dates once time within the DatePicker control, I afraid that there is no way to achieve your needs in PowerApps currently.
If you would like this feature to be added within PowerApps, please submit an idea to PowerApps Ideas Forum:
https://powerusers.microsoft.com/t5/PowerApps-Ideas/idb-p/PowerAppsIdeas
As an alternative solution, I think two DatePicker controls could achieve your needs. You could consider take a try to add two DatePicker controls within your app, then select a Date value within the first DatePicker control as Start Date, select another Date vlaue within the second DatePicker control as End Date.
After that, you could calculate the Dates between the Start Date and End Date within your app, and add them into a Collection.
I have made a test on my side, please take a try with the following workaround:


Set the OnSelect property of the "Calculate" button to following:
ClearCollect(
DateRanges,
AddColumns(
FirstN(
[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31],
DateDiff(DatePicker1.SelectedDate, DatePicker2.SelectedDate, Days) + 1
),
"Day",
"Day " & (Value + 1),
"Date",
DateAdd(DatePicker1.SelectedDate, Value, Days)
)
)
Set the Items property of the Data Table control to following (enable proper fields within your Data Table😞
DateRanges
Please check the attached GIF screenshot for more details:
Please also check and see if the response within the following thread would help in your scenario:
https://powerusers.microsoft.com/t5/General-Discussion/Consecutive-date-range-into-collection/td-p/46764
Best regards,