Does anyone know of an extension, or really any way, to add a start and end date date-picker field on contact form 7?
Missed this, I know it may be out of date, but did you try using a different form plugin? WP Forms or Fluent Forms are both very good free ones.
A lot of features of the wpforms plugin are limited in the free version
We ended up going with a templated theme which came with an already customized contact form 7 with a date picker that we were able to play around with to cater our needs.
Thanks so much for the responses!