Hi Noor,
I figured out a way to solve your issue!
Try doing the following steps:
In your TOP INCLUDE, create the following type for your internal table and structure.
After that, create a TC using Wizard Tool as shown below
*** DO NOT SELECT MARK FIELD ***
Here you will put your [mark] field declared in your internal table
This will create the following output, with a default "Select All" button (that will have a ok_code related to it and will trigger the PAI event).
After using "Select All" and choosing "Save" button, we get the following values in Internal Table used for Table Control
Hope it solves your issue! 
Cheers!