V3.72pre introduced a tab interface on the Add/Edit entry screen to switch between Notes and Custom Fields tabs, as a result the ability in versions prior to v3.72pre to copy the entire Notes field to the clipboard by simply clicking on the 'Notes' heading is no longer possible. This is a general feature for all fields on the Add/Edit entry screen where any of the headings (e.g. Password, URL, Email, etc.) can be clicked on to copy the corresponding field to the clipboard.
This FR recommends adding a Copy Notes text on the Notes tab to restore the ability to copy Notes while on the Add/Edit entry screen for consistency with the ability to copy any of the other fields. See enclosed picture of v3.72pre Add/Edit screen Notes tab and suggestion of highligted area where a Copy Notes text might work.
Probably should have titled this 'Restore ability to copy Notes on Add/Edit entry screen using a single button click' since it also possible to right click on the Notes area twice, once to select all text and a second time to copy all to the clipboard. However, this is not as convenient as the single click copy feature that the tabbed interface between Notes and Custom Fields eliminated.