Form to fill in data help

Hi all,

I am looking at having a form on the attached spreadsheet that gets the user to add the data on it and not directly onto the spreadsheet, I started to create a Form on the sheet as you can see if you press ALT - F11 and have it how I want it by following an online tutorial, Only issue is I have no idea what VBA to add to the buttons do what I want them to do.

So I want the DATE text input box to firstly only allow the format 00/00/0000, Then the e number (stands for employee number), Start time and end time need to be in this format 00:00:00, Issue Area/Base During Outage and Equipment Provision will be drop down lists, INC number allows them to put an Incident number in and then Comments goes into the "issue notes" section. I would like it so you press a button or ENTER and this data populates the relevant sections on the sheet, There may be multiple entries.

I know this is a massive task and I think it is way out of my realm of excel skills and was hoping someone here could help me with it?

Thanks in advance.