Add date in a Edit-Protected File

[Deleted]

I would like to create what is specified bellow, but have no clue how to do it.

TL;DR "u have this Checkbox Checked, so add a date to it" in a Edit protected Word file

The problem is like this:

I need to create a template for my use, but I give this document to others, so I need to write protect it, so they only do, what I allow them to do.

Now, we know they cant add anything to the document, that isnt already in it. BUT I have a multiple checkbox table, where they specify if they have that (what is specified) and I want, for all Checked boxes to add a date untill which they have that. if its not checked, it doesnt show the date box. 

I would apreciate any recommendations.

[#2]

Another option which would be viable is this:
I make a drop down list, as example with: yes-, no-, not needed - states, can I somehow hide the date when the state is NOT "yes"