Power Platform Community Forum Thread Details

Hey I was using PCF big calendar by @RAWilson and it worked just fine. However, I am encountering some error in the formula bar when I tried to add OnChange Property. The onChangeAction is highlighted as wrong name. I have already followed the instruction on github.

Is there anything I could do to fix this? I would like to be able to create a new record or to show detail of the record by clicking the timeslot and records.