Hello @Mohammad Talib Below is the response from the Microsoft Product team, I hope this helps with your initial query.
this example should be very helpful, if we are trying to use the TSI JavaScript SDK (aka tsiclient)
https://tsiclientsample.azurewebsites.net/withplatform/exploreeventspayg.html
Response on the followup query: updated: 3/22/2021
call availabilityChart.setBrush(fromTime, toTime) to set the dateTimeButton and availabilityChart to whatever time you want
Please comment in the below section if you have any comments in this regard.
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