Angular Material Table Column Data in Dropdown Options

Can uh make complete video of this concept...

am confused how to create dependency to column to another column in droplist

How can I add different table for each particular mat-option can you tell i want to show different table for each different mat-option can u help 😅

your videos are so useful for futute purpose

when i click on checkox which is present inside dropdown i got data frombackend in json object ,its start from { } curly braces not in array form[ ] . i need to display that data in below in table format just like stack data and when i click delete button i want to remove that data from checkbox and below....its neccesary for me pls help us to learn diffrent technology
thanks in advance

this tutorial is awsome

sir please make CRUD operation with ag-grid in angular with json server