Tacked column view for subitems

Is there any possibility to tack columns from subitems?
We evaluate various the content of various items by writing notes within text-columns of their subitems.

When scrolling through the (main)columns to view the content it would be awesome to have the subitem-columns tacked so you can make notes while scrolling.

At the moment, we always have to scroll back to the beginning of the sheet (means to the first column) to get access to the subitem columns, where we write notes.