How to create a multi select drop down UI in MDM

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How to create a multi select drop down UI in MDM

 Hi,

 

I want to create a Multi select drop down list in MDM

Example for Subjects:

 

So for Student entity I created a foreign key for subjects to bring a drop down for selection of subjects. And to add multiple subjects I created a zero to many relationship in the entity which gives me a + symbol to add multiple subject fields.

 

Question is how to group the subjects in the UI so it doesn't seem too clutter.

 

So From:

 

Subject : Math +

Subject : Science + 

Subject : English +

 

To something like:

                    Math

Subjects :    Science

                    English

 

Is it possible.