No option to REQUIRE WRITTEN signatures

Hi,

I know users have the option to change from digital to written, but many people miss this, and then I have to resend the document as written signatures are required in my industry. I see this option on the help webpage, but is it not shown in Adobe Acrobat Pro (with AdobeSign) or using Adobe.com, see below. I would like a WRITTEN SIGNATURE to be the only option signers have. 

How do I do this?