Hello, First of all, I wish an happy new year 2019 (from France)! I use formidable forms with E2pdf to generate documents online. I'd like to convert numbers puted in the number field into words; for example "555" shall have to appear also as " five hundred fifty five". For these, I'd like to create a new field on formidable forms that will generate automatically the numbers in words, thanks to a php code. But, after reviewing the documentation online, I still don't know where to put my php code: creating an "html field" and put the php code under the settings: it doesn't work, obviously, php code is not supported. implemented the php code under the functions.php of the wordpress theme(as read in the documentation): I don't understand how this modification of the theme could add a new function into formidable forms; implemented the php code under the source code of Formidable Forms: certainly the right solution but I don't know which folderI shall have to modify/ to create. I'll be grateful for any help, Thank you!