# Level Navigation

If you use single level text file (just one level inside text file) then there is not much to navigate, just inter-collection navigation is available.

## Navigating between collections

There are several ways to change current collection

- Select some of recently loaded collection using "Collection" combo box
- Press on "Collection" button and select a new collection file.
- Drag and drop text file with level or collection to YSokoban
- Copy/paste level or collection into YSokoban.

## Navigation inside collection

Navigation between levels of already loaded collection:

- Ctrl-<left/down arrow>: load previous level in the collection
- Ctrl-<right/up arrow>: load next level in the collection
- Ctrl-HOME: load first level in the collection
- Ctrl-END: load last level in the collection
- Shift+Ctrl-<left/down arrow>: load previous unsolved level
- Shift+Ctrl-<right/down arrow>: load next unsolved level
- On the upper left corner box where you see level "x" of N, if you change x to y, level y will be loaded. i.e. if you see level 2 of 100, if you change 2 to 45, it will load level 45.

## Bookmarking

To bookmark levels press Ctrl-(1 to 9).

To go to bookmarked level press (1 to 9).

Note that the bookmarks are only valid for the session (i.e. exiting YSokoban will forget them).

A good use for the bookmark is to visually compare levels. i.e. you can bookmark two similar levels and then toggle between them to see what was changed.

NOTE: Ctrl-<left arrow key>/<right arrow key> accomplishes the same thing but it only works for two consecutive levels in a collection.

Created with Ywiki