;doc: ui: keys: updates, clarify period narrowing & shift arrow keys

hledger-ui/hledger-ui.m4.md

@@ -102,31 +102,9 @@ The cursor keys navigate:
 Emacs-style (`CTRL-p`/`CTRL-n`/`CTRL-f`/`CTRL-b`)
 and VI-style (`k`,`j`,`l`,`h`) 
 movement keys are also supported.
-A tip: movement speed is limited by your keyboard repeat rate,
-to move faster you may want to adjust it.
-(If you're on a mac, the karabiner app is one way to do that.)
-
-With shift pressed, the cursor keys adjust the report period,
-limiting the transactions to be shown (by default, all are shown).
-`SHIFT-DOWN/UP` steps downward and upward through these standard report period durations:
-year, quarter, month, week, day.
-Then, `SHIFT-LEFT/RIGHT` moves to the previous/next period.
-`T` sets the report period to today.
-With the `-w/--watch` option, when viewing a "current" period
-(the current day, week, month, quarter, or year),
-the period will move automatically to track the current date.
-To set a non-standard period, you can use `/` and a `date:` query.
-
-(Mac users: SHIFT-DOWN/UP keys do not work by default in Terminal, as of MacOS Monterey.
-You can configure them as follows: 
-open Terminal,
-press CMD-comma to open preferences,
-click Profiles,
-select your current terminal profile on the left,
-click Keyboard on the right,
-click + and add this for Shift-Down: `\033[1;2B`,
-click + and add this for Shift-Up:   `\033[1;2A`.
-Press the Escape key to enter the `\033` part, you can't type it directly.)
+
+(Tip: movement speed is limited by your keyboard repeat rate, to move faster you may want to adjust it.
+On a mac, the Karabiner app is one way to do that.)
 
 `/` lets you set a general filter query limiting the data shown,
 using the same [query terms](hledger.html#queries) as in hledger and hledger-web.
@@ -140,6 +118,26 @@ both ordinary transactions recorded in the journal, and periodic
 transactions generated by rule. `F` toggles forecast mode, in which
 future/forecasted transactions are shown.
 
+Pressing `SHIFT-DOWN` narrows the report period, and pressing `SHIFT-UP` expands it again.
+When narrowed, the current report period is displayed in the header line,
+pressing `SHIFT-LEFT` or `SHIFT-RIGHT` moves to the previous or next period,
+and pressing `T` moves to the period containing today.
+If you are using `-w/--watch` and viewing a narrowed period containing today,
+the view will follow any changes in system date (moving to the period containing the new date).
+
+You can also specify a non-standard period with `/` and a `date:` query;
+in this case, the period is not movable with the arrow keys.
+
+(Tip: arrow keys with Shift do not work out of the box in all terminal software.
+Eg in Apple's Terminal, the SHIFT-DOWN and SHIFT-UP keys must be configured as follows:
+in Terminal's preferences, click Profiles,
+select your current profile on the left,
+click Keyboard on the right,
+click + and add this for SHIFT-DOWN: `\033[1;2B`,
+click + and add this for SHIFT-UP:   `\033[1;2A`. <!-- Press the Escape key to enter the `\033` part, you can't type it directly.) -->
+In other terminals (Windows Terminal ?) you might need to configure SHIFT-RIGHT and SHIFT-LEFT
+to emit `\033[1;2C` and `\033[1;2D` respectively.)
+
 `ESCAPE` resets the UI state and jumps back to the top screen,
 restoring the app's initial state at startup.
 Or, it cancels minibuffer data entry or the help dialog.