symfony - how to create new action in sonata admin -


i use sonata admin symfony2.4. have 2 entities exam , student many many relation , want when add new exam, new button created shows me list of student should participate in exam. in configurefield form have these buttons: create, create , return list, create , add

when click button create add new exam, these buttons created sonata:

update, update , close, delete. want add new button 'students list' these buttons, possible?


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