====== Select Folder ======

===== Description =====

This container picks a folder out of a series of folders identified by [[Number Folder]] functors placed inside it, using an index to choose among them.

===== Inputs =====

None.

===== Optional Inputs =====

^ Name  ^ Type  ^ Description  ^ Default Value  ^
| Step  | [[Positive Integer Value Type]]  | Current index, step, or model iteration, used to pick the folder. When this functor is placed inside a loop container, this port connects to that container's current step automatically.  | Provided automatically  |

===== Outputs =====

^ Name  ^ Type  ^ Description  ^
| Folder  | [[Folder Type]]  | Folder picked out of those present in the series.  |

===== Group =====

[[Functor List#Stack | Stack]]

===== Notes =====

The folder selected is the one identified with the greatest index that is still less than or equal to Step.

Folders are identified using an index assigned by a [[Number Folder]] functor placed inside this container.

This container must hold at least one [[Number Folder]] instance; otherwise the model raises an error. If Step is smaller than every index assigned inside the container, the model also raises an error.

===== Internal Name =====

SelectFolder