A remedy for the lack of table footer needs script help

I often encounter long tables. 

The table line at the bottom of each paging table is not bold. You need to set it manually

I see the footer function, but it's not perfect.

I want to achieve:

(1) Add a row at the end of the table.

(2) The top line of this row is empty and the bottom table line is 0.5mm.

(3) The row height is 0.1 (there seems to be a minimum row height of 1.058mm).

(4) In this row, the leftmost table line is 0 and the rightmost line is 0. The middle does not change.（Sometimes it is necessary to set the leftmost and leftmost table lines to none）

(5) Apply the cell style "footer" to this row.

It's annoying to do these locks. I hope experts can help implement them with scripts

Thank you very much.

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Also, I want to ask.

When using and executing scripts, can you just place the cursor in the table without even selecting the entire table.

There is no need to select the last row

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I Use a diagram to show it