Q: Is there any possibility to customize (add/remove) the columns which can be seen in the FOLs table?

A: Yes, it is possible. 

Step 1: You can do it from the Configure table by clicking on it. It is towards the right of Failed Order Lines. Please see screenshot below.

Step 2: There you will find the possibility to tick or untick columns and then click on "Apply".

NOTE: Please note that some columns are set by default by the system. They are marked with grey and cannot be modified (as "Store" or "Supplier" in the screenshot above). Also you can select all columns by clicking on "Select All".