pattern - An Only Connect Wall

The $16$ words below may be partitioned into $4$ groups of $4$ thematically connected words.
What are those connections and groups?

---

Text version:

+-----------+-----------+-----------+-----------+
|   SHIFT   |  OPTION   |    RED    |   FLAP    |
+-----------+-----------+-----------+-----------+
|   BLACK   |   BOOK    |   LANE    |  CONTROL  |

+-----------+-----------+-----------+-----------+
|   STOCK   |  SPARROW  |    FRA    |   GREEN   |
+-----------+-----------+-----------+-----------+
|   BOND    |   NAVY    | ALTERNATE |   SHAFT   |
+-----------+-----------+-----------+-----------+

---

The puzzle format is from BBC Television's quiz show Only Connect.
This wall is probably more suitable for Puzzling.SE than the show (although the shows are tough).

Hints:

Currently correctly identified groups and who found them:

Shift, Option, Control, Alternate identified as (1) by M Oehm

Black, Red, Lane, Stock identified as (2) by ArgumentBargument

If you look at this information (including removal of the possibility of other, incorrectly identified, groups), please do upvote their finds! (Infact, do if you look at their spoiler text also).

Brent Hackers' Bounty Hint

One of the remaining groups

...is connected by a property of something often seen here and there on Puzzling, sometimes in the puzzles, sometimes in comments, and occasionally even in chat; have a look around and see what is the same - I really do hope it does not irk/vex.

Answer

Groups 3 and 4:

SPARROW, BOND, BOOK, SHAFT: types of "jack/James". Jack Sparrow, Book of James, James Bond, jackshaft.

FLAP, GREEN, FRA, NAVY: can be rot13ed to produce another word. (SYNC, TERRA, SEN, ANIL.)