Can we have an easy way to use custom form helpers like https://github.com/GetJobber/recurring_select or https://github.com/jeffp/enumerated_attribute with formtastic please? I'm not confident adding them as custom inputs myself based on https://github.com/justinfrench/formtastic#modified--custom-inputs
Given an endless list of form helpers out there, this seems like mission impossible :)
Custom Inputs are my answer.
For recurring_select, I think Custom Inputs are a great fit, and probably not a lot more involved than what we did for Formtastic's CountryInput (https://github.com/justinfrench/formtastic/blob/master/lib/formtastic/inputs/country_input.rb).
I'm not 100% confident this will work, but in order to find out, someone needs to make a start. That person is you :)
I haven't looked, enumerated might also be easy, but I think each helper would need to be assessed on a case-by-case basis to figure out how best to integrate. The way to build confidence is to make a move and see where things break. Try to make it fit your app, tell us where it breaks, then we can find a way to help.
Closing this for now, feel free to open a new specific issue, or re-open this with general stuff that might help you uncover what you need to know to try to implement either of these.
Actually closing this time :)