<s>
In	O
computing	O
and	O
user	O
interface	O
engineering	O
,	O
a	O
selection	O
is	O
a	O
list	O
of	O
items	O
on	O
which	O
user	B-Application
operations	I-Application
will	O
take	O
place	O
.	O
</s>
<s>
Selections	O
are	O
enacted	O
through	O
combinations	O
of	O
key	O
presses	O
on	O
a	O
keyboard	B-Device
,	O
with	O
a	O
precision	O
pointing	B-Device
device	I-Device
(	O
mouse	B-Device
or	O
touchpad	B-Application
and	O
cursor	B-Application
,	O
stylus	B-Device
)	O
,	O
or	O
by	O
hand	O
on	O
a	O
touchscreen	B-Device
device	O
.	O
</s>
<s>
The	O
simultaneous	O
selection	O
of	O
a	O
group	O
of	O
items	O
(	O
either	O
a	O
subset	O
of	O
elements	O
in	O
a	O
list	O
,	O
or	O
discontinuous	O
regions	O
in	O
a	O
text	O
)	O
is	O
called	O
a	O
multiple	B-General_Concept
selection	I-General_Concept
.	O
</s>
<s>
Text	B-General_Concept
selection	I-General_Concept
is	O
associated	O
with	O
the	O
cut	B-General_Concept
,	I-General_Concept
copy	I-General_Concept
and	I-General_Concept
paste	I-General_Concept
operations	O
and	O
done	O
with	O
a	O
cursor	B-Application
,	O
caret	B-Application
navigation	I-Application
or	O
touch	B-Device
.	O
</s>
<s>
Image	B-Application
editing	I-Application
applications	O
can	O
feature	O
specialized	O
graphical	B-Application
tools	I-Application
for	O
the	O
selection	O
and	O
modification	O
of	O
areas	O
and	O
shapes	O
or	O
to	O
interact	O
with	O
colours	O
,	O
such	O
as	O
the	O
magic	O
wand	O
selection	O
tool	O
,	O
the	O
lasso	O
selection	O
tool	O
,	O
the	O
marquee	O
selection	O
(	O
bounding	B-Algorithm
box	I-Algorithm
)	O
,	O
or	O
the	O
color	O
picker	O
.	O
</s>
<s>
Files	O
and	O
other	O
interface	O
components	O
can	O
be	O
selected	O
and	O
used	O
with	O
the	O
advent	O
of	O
GUIs	B-Application
.	O
</s>
<s>
A	O
variation	O
to	O
facilitate	O
the	O
selection	O
of	O
a	O
range	O
of	O
items	O
in	O
a	O
long	O
list	O
on	O
touch	B-Device
screen	I-Device
devices	O
is	O
range	O
selection	O
,	O
sparing	O
the	O
user	O
from	O
tapping	O
each	O
item	O
individually	O
.	O
</s>
<s>
It	O
is	O
implemented	O
since	O
early	O
versions	O
of	O
ES	O
File	B-Protocol
Explorer	I-Protocol
,	O
where	O
only	O
two	O
listed	O
items	O
(	O
file	O
or	O
directory	O
)	O
need	O
to	O
be	O
highlighted	O
to	O
select	O
all	O
in-between	O
,	O
in	O
resemblance	O
to	O
the	O
shift	B-Device
key	I-Device
selection	O
of	O
desktop	O
file	O
managers	O
such	O
as	O
Windows	B-Protocol
Explorer	I-Protocol
and	O
Nemo	B-Language
file	I-Language
manager	I-Language
.	O
</s>
<s>
Simultaneous	B-Application
editing	I-Application
is	O
a	O
technique	O
in	O
End-user	O
development	O
research	O
to	O
edit	O
all	O
items	O
in	O
a	O
multiple	B-General_Concept
selection	I-General_Concept
.	O
</s>
<s>
The	O
technique	O
also	O
appears	O
in	O
data	B-General_Concept
wrangling	I-General_Concept
tools	O
,	O
allowing	O
the	O
user	O
to	O
make	O
the	O
same	O
changes	O
to	O
several	O
records	O
of	O
the	O
same	O
kind	O
in	O
a	O
table	O
.	O
</s>
<s>
The	O
term	O
simultaneous	B-Application
editing	I-Application
is	O
also	O
used	O
to	O
describe	O
collaborative	O
editing	O
in	O
collaborative	B-Application
real-time	I-Application
editors	I-Application
.	O
</s>
<s>
A	O
column	O
selection	O
is	O
a	O
text	B-General_Concept
selection	I-General_Concept
feature	O
found	O
in	O
text	B-Application
editors	I-Application
which	O
allows	O
the	O
user	O
to	O
select	O
characters	O
in	O
a	O
grid-like	O
fashion	O
,	O
selecting	O
characters	O
in	O
several	O
lines	O
at	O
the	O
same	O
columns	O
.	O
</s>
<s>
This	O
is	O
usually	O
initiated	O
by	O
pressing	O
the	O
alt	O
key	O
(	O
instead	O
of	O
the	O
shift	B-Device
key	I-Device
,	O
which	O
creates	O
a	O
continuous	O
selection	O
)	O
to	O
select	O
text	O
when	O
dragging	O
.	O
</s>
<s>
Some	O
applications	O
also	O
enable	O
text	O
to	O
be	O
typed	O
in	O
multiple	O
lines	O
at	O
once	O
using	O
this	O
method	O
as	O
a	O
limited	O
form	O
of	O
simultaneous	B-Application
editing	I-Application
.	O
</s>
<s>
The	O
Lapis	B-Application
text	I-Application
editor	I-Application
,	O
Mozilla	O
's	O
Firefox	O
developer	O
tools	O
,	O
and	O
the	O
multi	O
edit	O
plugin	O
for	O
gedit	B-Language
are	O
examples	O
of	O
the	O
simultaneous	B-Application
editing	I-Application
technique	O
that	O
work	O
on	O
discontinuous	O
regions	O
through	O
direct	O
manipulation	O
.	O
</s>
<s>
The	O
Lapis	B-Application
editor	O
can	O
also	O
create	O
an	O
automatic	O
multiple	B-General_Concept
selection	I-General_Concept
based	O
on	O
an	O
example	O
item	O
.	O
</s>
