Develop basic Word Macro(s) in VBA to implement document workflow

I need a series of MSWord (2016) templates developed for office forms - e.g. Leave Application, Expense Claim, etc - that have workflow functionality by means of VBA macros. I want to start with a simple template that can then be used as a basis for other templates. We need a document value, 'ApprovalStatus' that needs to be initially set to '0' (not yet submitted). The form must have a field: 'Name', and a field 'Email Address'. At the bottom, we need a drop down list that will be manually populated in the code, with a label: 'Request Approval From:'. This drop down list needs to store 2 values for each row: name and email address. Like this: General Manager gm @ [login to view URL] Branch Manager bm @ [login to view URL] HR Manager hr @ [login to view URL] etc. But the email address does not need displaying. Next to that list a button labelled "Submit". This button must only be displayed if the document value ApprovalStatus = 0. We also need another button that is initially hidden, labelled "Approve". This must only be displayed if the document value ApprovalStatus = 1. The actions of the buttons need to be: SUBMIT: when this button is clicked the document value ApprovalStatus needs to be set to '1' and saved in the document to indicate that the form has been submitted for approval. The document also needs to store the requestors email addressThen the form needs to be emailed to the recipient selected in the 'Request Approval From" list. Obviously, the form will need to be in a .docx (macro enabled) filetype. The email subject needs to be: "REQUEST: Approval needed; form attached", and the body: "please find attached a form for your approval". APPROVE: when this button is clicked we need to add text to the document at the bottom that says "Approved on: <insert current date and time>, by <insert windows username>". Then the form is emailed back to the originator - we stored their email address previously - and a pre-determined email address we will store in the code. The email subject needs to be: "APPROVED: form attached", and the body: "please find attached the approved form." I have attached a basic Word template with the fields in place, except the drop down list has no data.