How to disable few options in ChoiceField?

[MartynasZilinskas]

I couldn't find how to disable options in ChoiceField.

        let stages =  [
            [1, 'First'],
            [2, 'Second'],
            [3, 'Third'],
            [4, 'Fourth'],
            [5, 'Fifth']
        ];

I want 2-5 to be disabled. How it should be done? Thanks for the answer.

[vinceprofeta]

+1