Default sort column and dynamic cell value modification

Hello,

I have two queries.

1- Is there a way to specify default sort order on based on any column that is executed whenever data is updated in the table or when the table is rendered everytime?

2- Is there a way to dynamically change value or content of the cells in table based on the value that the cell original had at the time of loading? What I am trying to say here is that while the table is being rendered, can we implement some hook to change value of cells which have not-null data, as an example.

I am presuming that this might be able to be done through some DataTable trickery?

Any help or guidance would be appreciated. Thanks.

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