I’m not 100% sure about your question but as far as I understand you just need to create template for your Jot form and just add * stars wherever you wish.
Just add &tplForm=`something` to your Jot call and then at chunk "something" you can add as many start wherever you wish. For example:
E-mail* <input tabindex="[+jot.seed:math=`?+2`+]" name="email" type="text" value="[+form.field.custom.email:esc+]" id="email[+jot.id+]" &validate=`email:Not a valid e-mail address.:email,name:Please enter your name` />