Content control with multiple selectable options from list

[Cheesecube]

Hi, I am looking to create a content control which is essentially a scrollable list. (Please suggest the most suitable solution)

The user can select multiple options from this list by using Ctrl+Click, so multiple items will be selected

I've seen this type of scrollable list before on the web, how do I create one of these in Microsoft Word?

Preferably I would want this to be a Content Control because I am using a third party application to extract the data.

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Otherwise, please suggest an alternative Content Control where I can select multiple options from a list of 40+ standardized options

This content control should be compact as possible to fit into a table cell (list should be scrollable instead of taking up most of the page)

Thanks!