All Invoices Screen

I did a search and could not find a feature request for this so if this is a duplicate I apologize.

#1 there doesn’t seem to be a way to resize the columns. The items column is huge and the invoice name is tiny.
#2 add the ability to add other invoice fields in the column list including custom fields. We have “job numbers” as a custom field on our tickets that I’d like to see in the column list.
#3 what is #ref that is in the column list now? I could maybe put the job number in there if I could figure out how to modify that column?