Not to get what you want, no.
No, nothing to do with JSON. Just a regular Query column.
That suggests that you are using a Form Screen. Don’t do that.
Instead use Show New Screen->this Item
That’s all quite doable, but again - don’t use a form screen.
Here is a summary of what you need to do:
- Create two user specific date/time columns: one for the start date and one for the end date
- Add two date picker components to your slide in screen. Target one at each of the user specific columns.
- Create a Query column and target it at your Data table, then apply the following filters:
– Date is on or after This row->Start Date
– Date is on or before This row->End Date - Now add a button to your slide in screen, and configure the action to export the CSV, using the Query column as the source.