How do I create a drop down list to e-mail a form for signature.

The desired workflow is for

1)      Firefighter 1 to complete the top portion of the Agreement

section, sign in the Firefighter 1 signature field (which locks the top

portion of the Agreement Section), then select Firefighter 2 from the

e-mail drop down list and e-mail the PDF form to Firefighter 2;

2)      Firefighter 2 opens the e-mail and the PDF attachment,

completes the second portion of the Agreement Section, sign in the

Firefighter 2 signature field (which locks the bottom portion of the

Agreement Section), select Lieutenant 1 from the e-mail drop down list

and e-mail the PDF form to Lieutenant 1;

3)      Lieutenant 1 opens the e-mail and the PDF attachment, checks

the approved box, signs the Lieutenant 1 signature field, select

Lieutenant 2 from the e-mail drop down list and e-mail the PDF form to

Lieutenant 2;

4)      Step three continues through Lieutenant 2, Battalion Chief 1

and Battalion Chief 2

5)      Battalion Chief 2 sends the fully completed form back to

Firefighter 1 who copies the completed form to Firefighter 2

Note: if any of the officers disapprove the agreement the disapproved

form is immediately sent back to Firefighter 1