You can choose which columns to display by a right click on any coloumn header.
Rearrange them using drag/drop.
A bit hidden, if you hover a column header there is a small filter pictogram at the right.
The custom filter supports SQL style wildcards.
If needed you can build extensive filters and save them.
Click on a column header to sort the grid.
Use SHIFT+Click for multi-column sort.
Drag columns in the top bar to group the data grid.
Don’t use CTRL/A to select all tracks in this case as the Tagger can’t process the headers. A little design flaw.
Not all works by all composers are in the CHI-catalog.
Auto Select selects composers whose complete oeuvre are in the catalog.
Of course you have to populate the Composer field first to make this work.