ComponentsTables and views
Calculation footer
A sticky row under the grid: the record count first, then one calculation per column, picked from that column's menu and saved with the View.
Bulk action bar
While rows are selected, a 44px bar covers the toolbar: how many are selected, the actions that apply to all of them, then Clear.
Draft row
The last row of every grid. "+ New candidate" turns it into a row you type into, cell by cell, as in a spreadsheet. Enter saves it; Escape cancels it.