How can I customize my own content controller for a word form in office 2013?

[gwork]

Hello everyone.

I'm creating a word form these days. Now, there are quite a few useful content controllers such as "drop down list" button etc, but there's a specific controller that I wanna use but have failed to find/make, so hopefully someone here can help me with that.

I wanna insert or create a controller where a person who fills my form will have the option to BOLD their choice. I'll explain:
Usually forms contain simple controllers such as: "age: ____" and then a person can fill their age in the BLANK controller. But what I wanna do is put a few options that WILL show on the form and won't be blank and the one filling the form will be able to make their choice bold.
For example: a line will be something like "Shoes size: tiny, small, medium, large" and the person filling the form will be able to go through the 4 options and make his choice bold so that it'll look like that: "Shoes size: tiny, small, medium, large".

Is there any way to create such a button in a word form?

Any help would be appreciated.


Thanks.