How to create more than one controlbox and give a name to each box

Hello guys,
i am working on a project and i have a difficulty to create control boxes. Below is an image of the control box i mean
Screenshot (65)
I want to create 3 of those boxes and name each of them,with the possibility of choosing all 3 boxes.
is this even possible?
If not ,is there an alternative?
Thanks

Take a look to this post for some ideas:

Hi Jordan.

Read this step by step process, it should help do the trick.

GitHub - bickart/SugarCRM-CheckboxMultiEnum: SugarCRM 6 Field that can be used to replace the standard MultiEnum (i.e., Multi-Select) with Checkboxes