It would be really helpful to be able to resize the widths of the columns visible in communications (and really any other part of the database where there are multiple columns of information).
Also, it would be helpful to be able to edit how the subject of an email or note is displayed in the communications list. For example, an email saved to a candidate's profile because it contains an overview of his/her sales figures might have had a generic subject line when it was sent (e.g. New York Job Opportunity), and it would be great to have this appear in the communications list with a subject line of "2019 Sales Figures"