List selection boxes allow to select one or several items among a list, return and use it/them in downstream computations.
There exist two list selection boxes :
List selection boxes have one input and one output :
To set the content of a box :
When evaluated, the box returns the selected item.
By default, the first item is selected and reset when the box is initialized.
If the box is not locked, the selected item as well as the list of items will be reinitialized when the box is evaluated.
The single-item-list allows to select only one item at a time.
To select an item,
b to lock the box,
click on an item.
This box allows to select one or more items, which are returned as a list.
The multi-item-list is edited and used as as single-item-list .
To select consecutive items or all the items of the box,
SHIFT click on the items or click and drag them.
To select independent items,
Cmd click on them.