In Duat, there are various types of "objects" for selection. These get used on Normal mode key sequences, most notably on <A-i> and <A-a>. Each of them defines something to be selected:

b, (, )
Inside/around parenthesis.

B, {, }
Inside/around curly braces.

r, [, ]
Inside/around brackets.

a, <, >
Inside/around angle brackets.

q, '
Inside/around single quotes.

Q, "
Inside/around double quotes.

g, `
Inside/around graves.

w, <A-w> Inside/around words and WORDs.

s
Inside/around sentences.

p
Inside/around paragraphs.

i
Inside/around lines of equal or greater indentation.

Inside/around whitespace.

h, <Left>
Move left. Wraps around lines.

j
Move down

<Down>
Move down to the next wrapped line (i.c vim's gj).

k
Move up.

<Up>
Move up to the previous wrapped line (i.e. vim's gk).

l, <Right>
Move right. Wraps around lines.

H, <S-Left>, J, <S-Down>, K, <S-Up>, L, <S-Right>
Same as the previous characters, but extends the selection

w
Selects the word and following space ahead of the selection.

b
Selects the word followed by spaces behind the selection.

e
Selects to the end of the next word ahead of the selection.

<(W|B|E)>
The same as (w|b|e), but extends the selection.

<A-(w|b|e)>
The same as (w|b|e), but over a WORD.

<A-(W|B|E)>
The same as <A-(w|b|e)>, but extends the selection.

f{char}
Selects to the next occurrence of the {char}.

t{char}
Selects until the next occurrence of the {char}.

<(F|T)>{char}
Same as (f|t), but extends the selection.

<A-(f|t)>{char}
Same as (f|t), but in the opposite direction.

<A-(F|T)>{char}
Same as <A-(f|t)>, but in extends the selection.

{param}g
Goes to the {param}th line. If param was not set, enters go to mode.

{param}G
Extends to the {param}th line. If param was not set, enters go to mode, and actions will extend.

x
Extends selection to encompass full lines.

%
Selects the whole buffer.

<A-h>, <Home>
Selects to the start of the line.

<A-l>, <End>
Selects until the end of the line.

<A-H>, <S-Home>, <A-L>, <S-End>
Same as the previous two, but extends the selection.

m
Selects to the next pair of matching brackets.

<A-m>
Selects the previous pair of matching brackets.

M, <A-M>
Same as the previous two, but extends the selection.

<A-u>
Returns to the previous state for the selections.

<A-U>
Goes to the next state for the selections.

;
Reduces selections to just the [caret].

<A-;>
Flips the [caret] and [anchor] of selectionss around.

,
Removes extra selections.

C
Creates a selection on the column below the last one.

<A-C>
Creates a selection on the column above the first one.

<A-:>
Places the [caret] ahead of the [anchor] in all selections.

<A-s>
Divides selection into multiple selections, one per line.

<A-S>
Splits into two selections, one at each end of the selection.

<A-_>
Merges all adjacent selections.

i
Enter insert mode before selections.

a
Enter insert mode after selection.

I
Moves to the beginning of the line (after indent) and enters insert mode.

A
Moves to the end of the line and enters insert mode.

y
Yanks selections.

d
Deletes and yanks the selections.

c
Deletes, yanks, and enter insert mode.

p
Pastes after end of each selection (multi line selections are placed on the next line).

P
Pastes at the start of each selection (multi line pastes are placed on the previous line).

R
Replaces with the pasted text, without yanking.

<A-d>
Deletes selections without yanking.

<A-c>
Deletes selections without yanking, then enters insert mode.

o
Creates a new line below and enters insert mode in it.

O
Creates a new line above and enters insert mode in it.

<A-(o|O)>
Same as (o|O), but just adds the new line without moving.

r{key}
Replaces each character with {key}

u
[Undoes] the last moment

U
[Redoes] the next moment

>
Adds indentation to the selected lines.

<
Removes indentation to the selected lines.

<A-j>
Merges selected lines.

`
Changes selection to lowercase.

~
Changes selection to uppercase.

<A-`>
Swaps the case of each character.

<A-)>
Rotates each selection's content forwards.

<A-(>
Rotates each selection's content backwards.

|
Changes mode to [PipeSelections], letting you pipe each selection to an external program.

The searching in this plugin is done through the [IncSearch] [Mode] from Duat, with some [IncSearcher]s defined in this crate. This means that search will be done incrementally over a Regex pattern.

/
Searches forward for the next pattern.

<A-/>
Searches backwards for the previous pattern.

?
Extends forward for the next pattern.

<A-?>
Extends backwards for the previous pattern.

s
Selects the pattern from within current selections.

S
Splits current selections by the pattern.

<A-k>
Keeps only the selections that match the pattern.

<A-K>
Keeps only the selections that don't match the pattern.

n
Go to next match for pattern.

N
Create a new cursor on the next match for pattern.

<A-n>
Go to previous match for pattern.

<A-N>
Create a new cursor on the previous match for pattern.

*
Makes the main selection the searching pattern.

goto mode is entered with the g or G keys in normal mode.

On every key that selects, G will have the same behavior, but extending the selection instead.

h
Move to the beginning of the line (before indents, column 0).

l
Go to the end of the line.

i
Go to the beginning of the line, after indents.

g,k
Go to the first line.

j
Go to the last line.

a
Go to the last buffer. Repeating will return to this buffer

n
Go to the next buffer (includes other windows).

N
Go to the previous buffer (includes other windows).