Have node selection reflect in body with arrow keys alone, instead of having to use the enter key

[boltex]

Suggested by @ar-jan as an unrelated idea to an other issue #32 : #32 (comment)

Could this be mimicked? ...In Leo, if arrow keys are used in the outline, the node selection is reflected instantly in the body pane. In vscode, an outline has a cursor

Q&A below:

Q: It's already the case when using the keyboard to expand/contract nodes so why not making it so too when moving the outline "cursor" ?
A: expanding and collapsing nodes have an associated event, although moving the cursor in the tree is detectable, the selection cursor is unkown as far as I know as opposed to a collapse/expand event.

[boltex]

MIGHT BE POSSIBLE : Just hook on "up down left right" key presses with 'when' condition of having focus on the outline exclusively. -> On leo's side, mae available commands for select up down left and right of current selection.

In theory.... vs in practice ... 'know what i mean? 😄

[boltex]

This Feature has been greatly improved in branch "boltex/issue74"

[edreamleo]

Perhaps @bool stayInTreeAfterSelect (in leoSettings.leo) is relevant to this issue. Here are the comments:

True: (Recommended) Selecting an outline node leaves the focus in the outline pane.

If this is False it will be harder to use the arrow keys in the headline.

False: (Legacy) Selecting an outline node transfers focus to the body pane.