We are using calendar objects in our dashboard. User can chose a particular day/month/year from those calendar objects. But apart from that is it possible that user will type the date which he/she wants. Please let me know if there is any workaround.
You can use input box to store entered value into a variable and "Select" button with "Select in field" action (using expression with the variable). In such way you can create two of input boxes which will allow users to select range.