Most of the time, I get to the fields view by R clicking a table header > Fields.
From there, you can access the domains view by adding a new domain (it opens automatically), but it's harder to take a look at your existing ones. That button is all the way up on the Fields ribbon tab (Domains) or on the R click > Data design menu of the layer in the TOC. It would help a lot if you could get to Domains the same way you get to Fields -- from a R click on the headers in the same window where you're already working. Better yet, move the relatively unpopulated Fields ribbon tab into a toolbar within the Fields view, much like the new ModelBuilder toolbar.
I counted 16 buttons on the fields tab and 16 on the ModelBuilder toolbar. It seems like a good fit and similar scenario. Same could be done for the table view (seems like it's halfway there already). Anything to reduce clicks and/or mouse travel. I work with tables either docked in the bottom of Pro or on a second screen, so to have these contextual controls so far away on a ribbon tab that I have collapsed most of the time doesn't make a lot of sense. Locating commands closer to the relevant views would help, thanks.